Tuna Noodle Casserole Onion (Print View)

Baked creamy tuna and noodle dish topped with golden crispy onions, offering rich, savory flavors in every bite.

# Components:

→ Pasta

01 - 12 oz wide egg noodles

→ Protein

02 - 2 cans (6 oz each) tuna in water, drained

→ Vegetables

03 - 1 cup frozen peas
04 - 1 small onion, finely chopped
05 - 2 cloves garlic, minced
06 - 1 cup sliced mushrooms (optional)
07 - 2 tbsp fresh parsley, chopped

→ Sauce

08 - 1 can (10.5 oz) condensed cream of mushroom soup
09 - 1 cup whole milk
10 - 1/2 cup sour cream
11 - 1 cup shredded cheddar cheese
12 - 1/2 tsp black pepper
13 - 1/2 tsp salt
14 - 1/2 tsp dried thyme (optional)

→ Topping

15 - 1 1/2 cups crispy fried onions (store-bought)
16 - 1/2 cup breadcrumbs
17 - 2 tbsp melted butter

# Method:

01 - Preheat oven to 375°F. Lightly grease a 9x13 inch baking dish.
02 - Boil egg noodles in salted water until al dente. Drain and set aside.
03 - In a skillet over medium heat, sauté chopped onion and garlic in oil until softened, about 3 minutes. Add mushrooms if using and cook until tender.
04 - Whisk together condensed mushroom soup, milk, sour cream, shredded cheddar, salt, pepper, and thyme in a large bowl.
05 - Add cooked noodles, drained tuna, peas, sautéed vegetables, and parsley to the sauce mixture. Stir gently to combine evenly.
06 - Transfer mixture to prepared baking dish and spread evenly.
07 - Toss breadcrumbs with melted butter. Sprinkle evenly over casserole, then top with crispy fried onions.
08 - Bake uncovered for 25 to 30 minutes until bubbling and topping is golden brown.
09 - Allow to rest for 5 minutes before serving.

# Expert Advice:

01 -
  • Easy to prepare with simple ingredients
  • Family-friendly and ideal for weeknight meals
02 -
  • This casserole contains wheat, milk, fish, and soy—check ingredient labels if allergic.
  • Wide egg noodles create the best texture, but other pasta shapes can be used.
03 -
  • If you like a spicier kick, add a dash of hot sauce to the sauce mixture.
  • Allow the casserole to cool for a few minutes after baking for cleaner slices when serving.
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