Throw tuna and egg noodles in a casserole dish and get a meal so delicious your husband will be begging for more! A budget-friendly classic.
This Classic Tuna Noodle Casserole is a timeless exercise in moisture management and textural contrast. By par-boiling the egg noodles and combining them with a base of cream of mushroom soup and sour cream, you create a creamy internal environment that protects the lean tuna from overcooking. The addition of celery and onion provides a vital mechanical “crunch” that cuts through the soft noodles, while the butter-cracker crust offers a final layer of salty, golden crispness that balances the savory, umami-heavy filling.
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Classic Tuna Noodle Casserole with Egg Noodles
Ingredients for the Base:
| Ingredient | Quantity |
| Wide egg noodles | 8 oz |
| Tuna in water (drained) | 2 cans (5 oz each) |
| Cream of mushroom soup | 1 can (10.5 oz) |
| Whole milk | 1 cup |
| Sour cream (recommended) | 1/2 cup |
| Frozen peas (thawed) | 1 cup |
Aromatics & Topping:
| Ingredient | Quantity |
| Cheddar cheese (divided) | 1 cup |
| Celery / Onion (finely chopped) | 1/2 cup / 1/4 cup |
| Butter crackers (crushed) | 1 cup |
| Unsalted butter (melted) | 2 tbsp |
| Thyme / Garlic powder | 1/2 tsp / 1/2 tsp |
| Salt / Black pepper | 1/2 tsp / 1/2 tsp |
Step-by-Step Directions:
Step 1: The Al Dente Foundation: Preheat your oven to 375°F. Cook the egg noodles in salted water for 1/2 minutes less than the package directions.
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Tip: Undercooking the noodles is a vital mechanical step. Egg noodles are highly porous; if they are fully soft before entering the oven, they will absorb too much of the soup mixture, resulting in a “dry” casserole and “mushy” pasta. Keeping them firm allows them to finish cooking in the sauce.
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Step 2: The Creamy Emulsion: Whisk the soup, milk, sour cream, half the cheese, and seasonings together. Fold in the tuna, peas, celery, and onion.
Tip: Adding sour cream is a “viscosity” necessity. The tanginess of the sour cream acts as a chemical foil to the rich mushroom soup, brightening the flavor and ensuring the sauce stays “velvety” rather than becoming a heavy gel.
Step 3: The Gentle Integration: Add the drained noodles to the bowl and toss gently. Transfer to a greased 9×13-inch dish and top with the remaining cheese.
Step 4: The Crisp Topping: Mix the crushed crackers with melted butter and scatter over the top. Bake uncovered for 25/30 minutes.The Visual Cue: The casserole is ready when the edges are bubbling vigorously and the cracker crumbs have turned a deep, toasted gold.
Step 5: The Setting Rest: Let the dish rest for 5/10 minutes before serving.
Tip: This rest is a “structural” necessity. As the casserole cools slightly, the starches from the noodles and the fats in the cheese “set,” turning a loose mixture into a cohesive, scoopable meal.
