Some dishes just feel like home, and for me, tuna noodle casserole is one of them. It’s the kind of meal you make on a quiet evening, when you want something comforting bubbling away in the oven while the kitchen slowly fills with familiar, savory aromas.
There’s something deeply satisfying about stirring together simple pantry ingredients, folding in tender noodles, and finishing it all with a crunchy topping that turns golden as it bakes.
Creamy, nostalgic, and wonderfully unfussy, this classic tuna noodle casserole is comfort food in its most dependable form—the kind you’ll want to make again and again.
For the Tuna Noodle Casserole
- Egg Noodles – Wide egg noodles work best here. Be sure to cook them slightly under al dente so they hold their shape and don’t become mushy after baking.
- Yellow Onion – Adds a mild sweetness and savory depth once softened in butter.
- Butter – Used to sauté the onion and add richness to the overall casserole.
- Albacore Tuna – Solid white albacore tuna packed in water keeps the dish hearty without feeling heavy. Make sure it’s well drained.
- Cream of Mushroom Soup – This forms the creamy base of the casserole and brings classic, comforting flavor.
- Mayonnaise – Adds creaminess and a subtle tang that helps bind everything together. Use real mayonnaise, not Miracle Whip.
- Sour Cream – Balances the richness with a slight tang and helps create a smooth, velvety texture.
- Milk – Loosens the sauce just enough so the casserole bakes up creamy, not dense.
- Salt and Black Pepper – Simple seasonings that enhance all the flavors without overpowering the dish.
- Cheddar Cheese – Adds sharpness and melt-in-your-mouth cheesiness throughout the casserole.
- Peas – Bring a pop of color and a touch of sweetness that balances the savory ingredients.
- Crushed Potato Chips – The signature topping that adds crunch and contrast to the creamy filling.
The Perfect Tuna Noodle Casserole Recipe
Notes
Ingredients
- 12 ounces wide egg noodles (not extra wide), cooked slightly under al dente (about 2 minutes less than package directions)
- 1/2 cup yellow onion, diced
- 2 tablespoons butter
- 1 (12-ounce) can solid white albacore tuna in water, thoroughly drained
- 2 cans (10.5 ounces each) condensed cream of mushroom soup (or homemade equivalent)
- 1/3 cup mayonnaise (such as Hellmann’s; avoid Miracle Whip)
- 1/3 cup sour cream
- 1/3 cup milk
- 1/2 teaspoon salt
- 1/2 teaspoon black pepper
- 1 cup shredded cheddar cheese
- 1 cup peas
- 1 cup crushed potato chips
Instructions
- Heat the oven to 350°F. Lightly coat a 9×13-inch baking dish with nonstick cooking spray. Cook the egg noodles according to package directions, reducing the cooking time by about 2 minutes so they remain slightly firm. Drain well and set aside.
- In a skillet over medium to medium-high heat, melt the butter. Add the diced onion and cook until softened and translucent, stirring occasionally.
- In a large mixing bowl, combine the cream of mushroom soup, mayonnaise, sour cream, milk, salt, and pepper. Stir in the cooked onions along with the melted butter from the skillet until smooth.
- Add the drained tuna, peas, and shredded cheddar cheese to the bowl and mix until evenly distributed. Gently fold in the prepared egg noodles until everything is well combined.
- Transfer the mixture to the prepared baking dish and spread it out evenly. Sprinkle the crushed potato chips over the top.
- Place the casserole on the center rack of the oven and bake uncovered for about 30 minutes, or until heated through. Remove from the oven and serve warm.
- Serve with a lemon wedge on the side for a bright finish
- Leave out the onion or peas if preferred
- Add sautéed celery for extra crunch
- Swap the potato chips for breadcrumbs, French-fried onions, or additional cheddar cheese
- Replace cream of mushroom soup with cream of chicken, or use a combination with cream of celery
- Adjust seasonings or add spices to suit your taste
- Substitute cooked chicken if tuna isn’t your favorite
1. Can I make this tuna noodle casserole ahead of time?
Absolutely. You can assemble the whole casserole, cover it, and pop it in the fridge up to 24 hours ahead. When it’s time to bake, take it out while the oven heats and allow a few extra minutes in the oven if it’s still cold in the center.
2. How do I stop the noodles from turning mushy?
This one’s important: undercook the noodles. Cook them about 2 minutes less than the packet says so they’re still a bit firm. They’ll finish cooking in the oven and stay perfectly tender instead of going soft and soggy.
3. What if I don’t like peas?
No problem at all—this recipe is flexible. Swap the peas for corn, chopped green beans, or diced carrots. Just make sure frozen veggies are thawed first so they don’t water down the casserole.
4. Can I make this gluten-free?
Yes! Use gluten-free egg noodles and a gluten-free condensed soup. Everything else stays the same, and you’ll still get that classic creamy, comforting result.
5. How do I keep the potato chip topping crunchy?
Add the crushed chips right before baking for maximum crunch. If they soften more than you’d like, a quick 1–2 minute blast under the broiler at the end will crisp them right up—just keep an eye on it so they don’t burn.
