Ready in under 45 minutes, this classic and comforting casserole features tuna, onions, mushrooms, peas and cheese in a creamy sauce topped with more cheese and crunchy French fried onions! So flavorful, and sure to satisfy the entire family!
Boil a pot of lightly salted water. Cook egg noodles for 8-10 minutes or until al dente, drain. Set aside.
Sauté the chopped onions in a small saucepan with 2 tablespoons butter for 3-4 minutes.
Add the sautéed onions, 1 cup shredded cheese, peas, tuna, soup, milk, mushrooms, salt, pepper and noodles to a large bowl and mix thoroughly.
Transfer to a 9x13" baking dish and top with remaining 1 cup cheese.
Cover baking dish with aluminum foil.
Bake for 30 minutes.
Remove aluminum foil, top with French fried onions. Bake for 5 additional minutes.
Notes
Customize with Vegetables: While peas and mushrooms are classic additions to tuna noodle casserole, feel free to incorporate other vegetables you enjoy. Consider adding diced carrots, bell peppers, or spinach for added color and nutrients. You can also experiment with different types of mushrooms or use fresh mushrooms instead of canned ones for a more robust flavor.
Enhance Flavor with Seasonings: While the condensed soups provide a base of flavor, don't hesitate to season the casserole to taste with additional herbs and spices. Add a pinch of garlic powder, dried thyme, or parsley for extra depth of flavor. Taste the mixture before baking, and adjust the seasoning as needed to suit your preferences.
Crispy Topping Variation: While French fried onions add a delicious crunch to the top of the casserole, you can switch up the topping for variety. Try topping the casserole with crushed potato chips, seasoned breadcrumbs, or even crushed crackers for a different texture and flavor profile. Customize the topping to your liking to create a casserole that's uniquely yours.