Tuna Casserole Recipe With Cream Of Mushroom Soup: Nostalgic Bake With Buttery Crumb Topping

This classic bake brings nostalgic comfort to your dinner table with minimal effort. The combination of tender tuna, creamy mushroom sauce, and a buttery crumb topping creates a dish that’s both hearty and satisfying.

Ready in under an hour, it’s a reliable recipe that delivers rich flavor and a golden, crispy finish. Perfect for busy weeknights or a cozy family meal.

Ingredients for Tuna Casserole Recipe with Cream of Mushroom Soup

Pantry staples and a few fresh additions create this comforting, nostalgic bake everyone loves.

The tuna quality matters more than you think. Wild-caught canned tuna in water (not oil) keeps the flavor clean without overpowering the dish. Bumble Bee or Starkist are reliable brands. For the mushroom soup, Campbell’s is the standard, but Progresso offers a slightly richer option. Egg noodles should be medium width—Reames brand holds up well during baking.

No cream of mushroom? Cream of celery at half the quantity works in a pinch. Want extra crunch? Swap half the breadcrumbs for crushed Ritz crackers. For a lighter version, 2% milk is fine, but whole milk delivers the creamiest texture. Fresh mushrooms can be added—sauté 8 oz with the onion and celery for extra depth.

Assemble and refrigerate up to 24 hours before baking. Leftovers keep 3-4 days refrigerated. Freeze unbaked casserole for up to 2 months—thaw overnight before baking. The topping is best added fresh, not frozen.

Instructions

Here’s the method I use for a perfectly creamy, nostalgic bake every time.

Step 1: Prepare the Noodles and Vegetables

Cook the 8 oz Egg Noodles in salted boiling water until al dente, about 7-8 minutes. Drain and set aside. Meanwhile, finely dice the 1 whole Yellow Onion and finely chop the 2 pieces Celery Stalks. Thaw and drain the 1 cup Frozen Green Peas to remove excess moisture.

This step ensures the noodles don’t overcook during baking and the vegetables are ready for sautéing. Undercooked noodles will finish in the oven, absorbing flavors from the sauce.

Step 2: Sauté Aromatics and Build the Sauce Base

In a large skillet, melt 0.5 cup Unsalted Butter over medium heat. Add the diced Yellow Onion and chopped Celery Stalks, sautéing for 4-5 minutes until softened and translucent. Stir in the 0.5 cup All-Purpose Flour to create a roux, cooking for 1-2 minutes to eliminate the raw flour taste.

The roux will thicken slightly and turn a light golden color, indicating it’s ready for the next step. This forms the flavor foundation for your creamy sauce.

Step 3: Combine All Ingredients for the Casserole

In a large mixing bowl, combine the drained 8 oz Egg Noodles, flaked 2 cans Tuna in Water, 1 cup Frozen Green Peas, 2 cans Cream of Mushroom Soup, 1 cup Milk, 0.5 tsp Garlic Powder, 0.5 tsp Onion Powder, 0.5 tsp Kosher Salt, and 0.25 tsp Black Pepper. Stir until everything is evenly coated.

The mixture should be creamy but not soupy. If it seems too thick, add a splash more Milk. The Cream of Mushroom Soup will bind everything together during baking.

Step 4: Assemble and Add the Topping

Transfer the mixture to a greased 9×13-inch baking dish. In a separate bowl, mix the 1 cup Breadcrumbs with the 1 cup Cheddar Cheese. Sprinkle this evenly over the top of the casserole, ensuring full coverage for a crispy, golden crust.

This topping will turn golden brown during baking, adding texture and a rich, buttery finish to each serving.

Step 5: Bake to Perfection

Bake in a preheated 375°F oven for 25-30 minutes, or until the casserole is bubbling around the edges and the topping is golden brown. Let it rest for 5 minutes before serving to allow the sauce to set.

The resting period ensures clean slices and allows the flavors to meld. Serve warm, with the crispy topping contrasting beautifully against the creamy interior.

Serving Suggestions for This tuna casserole recipe with cream of mushroom soup

Plating Styles 🍽️

For a cozy, casual meal, serve your tuna casserole recipe with cream of mushroom soup directly from the baking dish at the table. A family-style presentation encourages sharing and a relaxed vibe. For a more formal setting, scoop portions onto warm plates and pair with a side of steamed green beans or a crisp garden salad. Buffet-style? Keep it warm in a chafing dish and let guests serve themselves with a large serving spoon.

Garnishing Techniques ✨

Elevate your dish with simple yet effective garnishes. Sprinkle freshly chopped parsley or chives on top for a pop of color and freshness. A drizzle of melted butter or cream can enhance the richness of the casserole. For a crunchy contrast, add a handful of fried onions or toasted breadcrumbs just before serving.

Portion Sizes

This hearty casserole is perfect for both individual and family-style servings. For a single serving, aim for about 1 to 1.5 cups per person. If serving family-style, ensure the baking dish is large enough to accommodate second helpings—this dish is often too delicious to resist!

Serving Temperature ⏰

Let the casserole rest for 5 to 10 minutes after baking to allow the flavors to meld and the texture to set. Serve it warm, straight from the oven, for the best experience. If reheating, cover with foil and warm in the oven at 350°F (175°C) until heated through, about 15-20 minutes.