From Scratch Gluten-Free Tuna Noodle Casserole

Step back in time to a simpler era of comforting, hearty meals with our ultimate recipe for Old Fashioned Tuna Noodle Casserole. This isn’t just any tuna casserole; it’s a nostalgic journey back to mom’s kitchen, brimming with creamy goodness, satisfying noodles, and that signature crunchy potato chip topping. Forget the canned soup shortcuts; our from-scratch method delivers unparalleled flavor and a velvety sauce, all while being effortlessly adaptable for a gluten-free lifestyle.

Get ready to rediscover a classic family favorite that’s easy enough for a weeknight yet delicious enough for special occasions. This recipe promises a bubbling, golden-brown casserole that will bring smiles to everyone at your table, reminding them of cherished childhood dinners.

overhead shot of tuna casserole with a wooden spoon going into it

Recreating Childhood Comfort: The Perfect Gluten-Free Tuna Casserole with Peas

There’s something uniquely comforting about a classic tuna noodle casserole. For many, it evokes memories of childhood, family dinners in the 70s and 80s, alongside beloved dishes like old school tamale pie, creamy mac and cheese, or savory Salisbury steak. These were the meals that brought everyone together, offering warmth and satisfaction. My own mother’s tuna casserole recipe was a true family sensation, not only for its rich, creamy sauce infused with canned tuna and sweet peas but especially for its irresistible, crunchy layer of potato chips on top. There was simply no need to ask us twice to enjoy potato chips with dinner!

As tastes evolve and dietary needs shift, I set out to recreate this cherished dish, maintaining all its essential flavors and nostalgic charm, but with a crucial modern update: making it a truly delicious gluten-free tuna noodle casserole. The goal was for our entire family to gather around a single, bubbling dish, free from dietary concerns and full of joy. My revamped version has been such a resounding success that it has quickly ascended to the top of our most-requested gluten-free pasta dinners and casseroles list. It proves that you don’t have to sacrifice flavor or tradition when embracing a gluten-free lifestyle.

While traditional recipes often rely on canned condensed mushroom soup for convenience, our homemade gluten-free tuna casserole proudly foregoes it. Instead, we craft a creamy sauce from scratch, ensuring a healthier, more flavorful outcome without adding complexity. This homemade approach keeps the recipe incredibly easy, making it a perfect candidate for a satisfying weeknight dinner. Much like our popular gluten-free broccoli and chicken pasta bake, the rich and creamy sauce comes together quickly on the stovetop. It’s then lovingly stirred into perfectly cooked gluten-free noodles, sharp cheddar cheese, tender peas, and for an extra touch of classic flair, optional hard-boiled eggs. The result is a casserole that’s deeply satisfying, incredibly easy to prepare, and a true taste of home.

“I haven’t had Tuna Noodle Casserole since I went gluten-free, so I was thrilled to discover this recipe. Not only was it delicious, exactly as written, but it was also incredibly easy to make. I’ve already eaten it for both lunch and dinner and will definitely be making it again.”

—Murray

Key Ingredients for a Flawless Tuna Casserole

Crafting the perfect tuna casserole begins with selecting the right ingredients. Each component plays a vital role in achieving that beloved creamy texture and savory flavor. Here’s a closer look at what you’ll need and some tips for making the best choices:

  • Tuna: For the best flavor and texture, opt for solid white albacore tuna or chunk light tuna packed in water. Tuna packed in oil can make the casserole overly greasy and alter the delicate flavor profile of the sauce. Albacore offers a firmer texture and milder taste, while chunk light tuna provides a softer texture and a slightly more pronounced tuna flavor. Both work wonderfully in this recipe, so choose based on your preference.
  • Cheese: The cheese is key for both flavor and creaminess. Freshly grated cheese, particularly sharp cheddar or a good quality medium cheddar, melts beautifully and integrates seamlessly into the sauce, providing a superior flavor compared to pre-shredded varieties. Pre-shredded cheese often contains anti-caking agents that can prevent it from melting as smoothly.
  • Hard-Boiled Eggs: This is an optional but highly recommended addition, a beloved touch my Mom included in many of her casseroles. Chopped hard-boiled eggs add an extra layer of richness and a delightful textural contrast. If you’re short on time or simply prefer not to include them, the casserole will still be fantastic.
  • Noodles: The choice of noodles is critical, especially for a gluten-free tuna casserole. While traditional egg noodles are classic for tuna bakes, gluten-free versions can be challenging to find. I highly recommend using readily available and robust gluten-free alternatives like elbow macaroni or penne. These shapes hold up well during baking and offer a satisfying bite. If you’re not making it gluten-free, traditional egg noodles are a perfect choice. For gluten-free pasta, follow our specific cooking tips below to prevent mushiness.
  • Potato Chips: This iconic topping is what elevates this vintage tuna casserole from good to outstanding! Regular or wavy potato chips, crushed just before baking, create an incredible salty, crispy crust that kids and adults alike adore. They are also naturally gluten-free, eliminating the need to search for expensive specialty GF breadcrumbs. If you’re looking for different textures or flavors, explore our alternative tuna casserole toppings section for more ideas.

Let’s Create This Deliciousness Together!

Get ready to bring this heartwarming dish to life with these easy-to-follow steps. Below, you’ll find step-by-step photos and detailed instructions. For the complete recipe, including precise ingredient amounts, please scroll down to the full recipe card.

Mastering the Creamy Mushroom Sauce: Quick and Simple

This homemade creamy mushroom sauce is a fantastic back-pocket recipe for all your gluten-free casseroles, serving as an easy and flavorful substitute for condensed cream soups. To create this rich sauce, begin by sautéing fresh mushrooms and diced onions in unsalted butter until they are beautifully soft and fragrant. Next, add the milk and your chosen seasonings, bringing the mixture to a gentle boil. In a separate small bowl, whisk together cornstarch with gluten-free chicken broth to create a slurry. Slowly stir this cornstarch mixture into the boiling milk, continuing to simmer and stir until the sauce thickens to a lovely, velvety consistency. This method ensures a perfectly creamy sauce without the need for canned soup or traditional flour thickeners, making it naturally gluten-free and incredibly delicious.

a spoon holding up mushroom sauce.

The Hard Part is Over: Mixing All the Casserole Goodness

Once your creamy mushroom sauce is ready, the most challenging part of this homemade tuna casserole is behind you! Now it’s time to bring all the wonderful components together. Grab a generously-sized mixing bowl and combine the partially cooked gluten-free noodles (we’ll explain why “partially cooked” is key below👇), your rich homemade sauce, creamy mayonnaise, tangy sour cream, tender frozen peas, the optional chopped hard-boiled eggs, and plenty of freshly grated cheddar cheese. Gently fold these ingredients together until they are evenly distributed and well combined. This ensures every spoonful of your casserole will be packed with flavor and texture.

all the casserole ingredients in a large bowl.

The Irresistible Crunchy Topping: Potato Chips!

This is the secret ingredient that transforms a delicious vintage tuna casserole into an absolutely outstanding culinary experience: a generous layer of crushed potato chips on top! This simple addition provides an incredible salty crunch that beautifully contrasts with the creamy interior. As an added bonus, most regular potato chips are naturally gluten-free, eliminating the need to purchase specialized (and often more expensive) gluten-free breadcrumbs. Once the casserole is assembled and topped, bake it in a preheated 350°F (175°C) oven for approximately 30-40 minutes, or until the casserole is bubbling hot throughout and the potato chips are golden and crispy.

unbaked tuna casserole with potato chips on top.

Say Goodbye to Mushy Pasta: Essential Gluten-Free Noodle Tips

If you’ve ever experienced a gluten-free tuna casserole turn out disappointingly mushy, you know the struggle is real. Preventing this is crucial for a truly enjoyable dish. I’ve said it before, and I’ll say it again: Rummo gluten-free pasta is, in my opinion, simply the best. Its unique composition gives it a sturdier structure, making it incredibly resilient against becoming overcooked and mushy. If your primary goal is to achieve a perfectly al dente bite in your GF tuna casserole, you absolutely must try it. It can be a bit harder to find in conventional grocery stores, so I often stock up by ordering it in bulk from Amazon or Vitacost.

However, if you need to grab a box from your local grocery store, there are still excellent options. I consistently recommend Barilla gluten-free penne or elbow macaroni. These brands tend to hold their shape and texture quite well during baking. On the other hand, I’ve found Ronzoni gluten-free pasta to break down too easily, resulting in a less satisfying texture. Banza pasta, while a good protein source, often has a distinct taste that can overpower the delicate flavors of a casserole. Many other gluten-free brands are perfectly fine, but the key to success with most of them is to ensure they are slightly undercooked before baking, as they are prone to becoming soft more quickly.

Of course, a truly old-fashioned style tuna bake traditionally uses egg noodles. If you are fortunate enough to find a good gluten-free version of egg noodles, that’s fantastic! They can be somewhat elusive in physical stores in my area, but I’m confident you can find excellent options online. If you have a fantastic gluten-free egg noodle brand you swear by, please share it in the comments below – our community would love to know!

🙌 Crucial Tip for Cooking GF Pasta! Whenever you’re baking a dish that includes gluten-free pasta, it is absolutely essential not to boil the noodles until they are fully cooked. Instead, boil them for approximately half the amount of time indicated for al dente on the package. This critical step ensures that the pasta retains enough firmness to withstand the baking process without turning mushy. After draining, briefly rinse the noodles under cold water. This helps to immediately halt the cooking process, preventing them from steaming and continuing to cook while you prepare the other ingredients.

overhead shot of a serving of tuna casserole on a white plate

Creative Alternative Toppings to Elevate Your Casserole

While the crunchy potato chip topping is undeniably classic and a family favorite, sometimes you might want to experiment with different textures or flavor profiles. If you’re looking to add a unique twist to your tuna casserole, consider these fantastic alternative toppings:

  • Extra Cheesy Topping: For cheese lovers, simply sprinkle on additional freshly grated cheese. Sharp cheddar, nutty parmesan, creamy Swiss, or mild Colby cheese will create an extra gooey, flavorful top layer as it melts into the casserole.
  • Homemade Gluten-Free Breadcrumbs: If you prefer a more traditional breadcrumb topping, combine 1/2 cup of gluten-free breadcrumbs with 1 tablespoon of melted butter in a small bowl. Toss to coat evenly, then sprinkle over the casserole before baking. The butter helps them crisp up beautifully.
  • Crushed Gluten-Free Crackers: For a different kind of crunch and a slightly savory, buttery flavor, finely crush your favorite gluten-free crackers. These will add a delicate crispness that’s truly delicious.
  • Crispy Gluten-Free Fried Onions: For an irresistible savory crunch and a hint of onion flavor, use crispy gluten-free fried onions. These add a wonderful depth of flavor and texture, reminiscent of green bean casserole.
  • Dynamic Duos: Why choose just one when you can combine? Mix 1/2 cup of grated cheese with breadcrumbs, crushed crackers, or fried onions for a multi-layered topping that offers both rich flavor and satisfying texture.
close up of casserole serving on a white plate with a fork going into it

Don’t Forget to Pin This Recipe!

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Did you make this comforting Old Fashioned Tuna Noodle Casserole? I absolutely love hearing from you and seeing your creations! Please take a moment to leave a star rating and comment below the recipe card. Your feedback is invaluable, as it helps other home cooks discover and enjoy this recipe, and it truly makes my day. I promise you’ll always hear back from me! -Melissa

overhead shot of tuna casserole with a wooden spoon going into it

4.25 stars (28 ratings)

Old Fashioned Tuna Noodle Casserole with Potato Chips


Melissa Erdelac of MamaGourmand headshot in patterned dress.
Melissa Erdelac
Yield: 8
Prep Time: 20 mins
Cook Time: 40 mins
Total Time: 1 hr
Learn how to make an old fashioned tuna casserole with crunchy potato chips just like Mom’s! This retro, classic tuna noodle recipe with cheese has a creamy homemade sauce using no condensed soup and is easily adaptable to make gluten-free!
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Ingredients



  • 12 ounces
    (340.2 g)
    gluten-free elbow or penne pasta,
    Rummo gluten-free brand recommended

Mushroom Sauce



  • 3 tablespoons
    (3 tbsp.)
    unsalted butter



  • ½
    (0.5)
    medium onion,
    diced



  • 8 ounces
    (226.8 g)
    fresh mushrooms,
    chopped



  • 2 ½ cups
    (569.33 g)
    milk (2% for richer flavor),,
    divided



  • 1 teaspoon
    (1 tsp.)
    salt



  • ¼ teaspoon
    (0.25 tsp.)
    pepper



  • ½ teaspoon
    (0.5 tsp.)
    garlic powder



  • 1 teaspoon
    (1 tsp.)
    Worcestershire sauce,
    (French’s or Lea & Perrins for gluten-free)



  • ½ cup
    (117.5 g)
    gluten-free chicken broth



  • 4 tablespoons
    (4 tbsp.)
    cornstarch

Tuna Casserole



  • (2) 5 ounce
    (142 g)
    cans white Albacore tuna in water,
    drained



  • 1 cup
    (145 g)
    frozen peas,
    thawed



  • 1 cup
    (113 g)
    freshly grated cheddar cheese



  • cup
    (74.67 g)
    mayonnaise



  • cup
    (76.67 g)
    sour cream,
    light or regular



  • 2
    (2)
    (optional) hardboiled eggs,
    chopped



  • 1 cup
    (85 g)
    crushed potato chips



  • (optional)

    lemon wedges,
    for serving

Instructions

  • Preheat your oven to 350°F (175°C). Lightly spray a 9×13 inch baking dish with cooking spray and set it aside, ready for assembly.
  • Cook the gluten-free pasta in a pot of boiling water. It’s crucial to cook it for only half the amount of time recommended for al dente on the package. This ensures the pasta remains firm enough to absorb the sauce and bake without becoming mushy. Once cooked, drain the noodles thoroughly and rinse them briefly under cold water to stop the cooking process. Set aside.
    12 ounces gluten-free elbow or penne pasta

Mushroom Sauce

  • In a medium saucepan, melt the unsalted butter over medium heat. Add the diced onions and chopped mushrooms, and sauté for 5-6 minutes, or until the vegetables have softened and released their moisture.
    3 tablespoons unsalted butter,
    ½ medium onion,
    8 ounces fresh mushrooms
  • Pour in 2 cups of milk, then stir in the salt, pepper, garlic powder, and Worcestershire sauce. Bring this mixture to a boil over medium heat, stirring occasionally. While it heats, whisk together the gluten-free chicken broth and cornstarch in a small bowl until completely smooth – this creates your thickening slurry.
    2 ½ cups milk (2% for richer flavor),,
    1 teaspoon salt,
    ¼ teaspoon pepper,
    ½ teaspoon garlic powder,
    1 teaspoon Worcestershire sauce,
    ½ cup gluten-free chicken broth,
    4 tablespoons cornstarch
  • Once the milk mixture begins to boil, slowly pour in the cornstarch and broth mixture, whisking continuously to ensure no lumps form. Continue to cook and stir for 1-2 minutes, or until the sauce has visibly thickened to a rich, creamy consistency. Remove the saucepan from the heat and set the sauce aside.

Tuna Casserole Assembly and Bake

  • In a large mixing bowl, combine the cooked and rinsed pasta, the remaining ½ cup of milk, the well-drained tuna, thawed frozen peas, freshly grated cheddar cheese, mayonnaise, sour cream, the optional chopped hard-boiled eggs, and your freshly made mushroom sauce. Gently fold all these ingredients together until they are thoroughly combined and coated in the creamy sauce.
    (2) 5 ounce cans white Albacore tuna in water,
    1 cup frozen peas,
    1 cup freshly grated cheddar cheese,
    ⅓ cup mayonnaise,
    ⅓ cup sour cream,
    2 (optional) hardboiled eggs
  • Pour the entire mixture into your prepared 9×13 inch baking dish, spreading it evenly. Generously top the casserole with the crushed potato chips. Bake for 40-45 minutes, or until the casserole is bubbling around the edges and heated through, and the potato chip topping is golden brown and crispy. Serve immediately, perhaps with optional lemon wedges on the side for a burst of fresh flavor.
    1 cup crushed potato chips
Calories: 500kcal,
Carbohydrates: 54g,
Protein: 24g,
Fat: 20g,
Saturated Fat: 8g,
Cholesterol: 92mg,
Sodium: 797mg,
Potassium: 648mg,
Fiber: 3g,
Sugar: 7g,
Vitamin A: 930IU,
Vitamin C: 6.7mg,
Calcium: 230mg,
Iron: 2mg

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Storage and Make-Ahead Tips for Your Tuna Noodle Casserole

This classic tuna noodle casserole is fantastic for meal prepping or enjoying as leftovers. Here’s how to store it and prepare it in advance:

  • Refrigeration: Leftovers can be stored in an airtight container in the refrigerator for up to 3-4 days. To reheat, cover and bake in a 300°F (150°C) oven until warmed through, or microwave individual portions. You might want to add a splash of milk to maintain creaminess.
  • Freezing: Tuna casserole freezes surprisingly well! To freeze, prepare the casserole up to the point of adding the potato chip topping. Cover the baking dish tightly with plastic wrap, then aluminum foil. Freeze for up to 2-3 months. When ready to bake, thaw overnight in the refrigerator. Add the potato chips and bake as directed, possibly adding an extra 10-15 minutes to the baking time to ensure it’s heated through. You can also freeze individual portions for convenient grab-and-go meals.
  • Make-Ahead: Assemble the entire casserole (without the potato chip topping) and store it covered in the refrigerator for up to 24 hours. Just before baking, add the crushed potato chips and bake as usual. This makes it an ideal dish for busy weeknights or entertaining.

Delicious Variations to Customize Your Casserole

While our old fashioned tuna noodle casserole is perfect as is, it’s also incredibly versatile! Feel free to customize it to your taste with these exciting variations:

  • Add More Vegetables: Enhance the nutritional value and texture by incorporating other cooked vegetables. Sautéed celery, corn, diced carrots, or steamed broccoli florets are excellent additions. Simply stir them in with the peas.
  • Spice It Up: For a kick, add a pinch of cayenne pepper, a dash of hot sauce (like Tabasco or Sriracha), or a teaspoon of smoked paprika to the sauce.
  • Herbaceous Twist: Fresh herbs can brighten the flavors. Stir in chopped fresh dill, parsley, or chives just before baking.
  • Swap the Protein: Not a fan of tuna? This creamy base works beautifully with other proteins! Cooked shredded chicken, canned salmon, or even chopped ham can be substituted for tuna.
  • Different Cheeses: Experiment with different cheese blends in the casserole for varied flavor profiles. A mix of cheddar and Gruyère or a sprinkle of Parmesan on top can be delightful.
  • Crispy Onion Strings: Instead of potato chips, use crispy fried onions for a flavorful and aromatic crunch.

Whether you stick to the classic or try a creative twist, this homemade gluten-free tuna casserole is sure to become a cherished recipe in your kitchen. Enjoy the comforting flavors and the ease of a meal that truly feels like home!