How many servings does this recipe make?

This recipe makes 4 servings. You can adjust the portion size directly on this page.

What ingredients do I need for Classic Tuna Casserole?

You need 9 ingredients. The key ingredients include: 1 pound Penne Pasta, Cooked Until Almost Al Dente, 2 cups Shredded Cheddar Cheese, Divided, 1/4 cups Minced Onion (about 1/2 Of A Small Onion), 1/2 cups Chopped Fresh Mushrooms, and more.

Is Classic Tuna Casserole suitable as seafood?

Yes, Classic Tuna Casserole falls under the Seafood category and is a great choice for this type of meal.

How do I store leftover Classic Tuna Casserole?

Store leftovers in an airtight container in the refrigerator for up to 3–4 days. Reheat gently before serving.

Classic Tuna Casserole Recipe

Name: Classic Tuna Casserole
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 1 pound Penne Pasta, Cooked Until Almost Al Dente; 2 cups Shredded Cheddar Cheese, Divided; 1/4 cups Minced Onion (about 1/2 Of A Small Onion); 1/2 cups Chopped Fresh Mushrooms; 2 cans (5 Oz. Can) Albacore Tuna, Drained; 2 cans (10.75 Oz. Can) Cream Of Mushroom Soup; 2 cups Frozen Peas; 1/2 cups Sour Cream; Salt And Pepper, to taste

Try this homemade Classic Tuna Casserole recipe the whole family will love. Made with Pasta, Cheddar Cheese, Onion and Fresh Mushrooms. Easy step-by-ste…

This Classic Tuna Casserole relies on simple, everyday ingredients such as chopped fresh mushrooms, frozen peas, sour cream and salt and pepper, to taste. It comes together quickly and makes 4 servings, at about 1092 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.

It's versatile enough for an easy weeknight dinner yet satisfying enough for guests at the weekend. Serve it with your favorite sides, and keep any leftovers for a quick meal the next day.

Updated Jun 30, 2026

Serves 4 Seafood

Servings: persons

1 pound Penne Pasta, Cooked Until Almost Al Dente
2 cups Shredded Cheddar Cheese, Divided
1/4 cups Minced Onion (about 1/2 Of A Small Onion)
1/2 cups Chopped Fresh Mushrooms
2 cans (5 Oz. Can) Albacore Tuna, Drained
2 cans (10.75 Oz. Can) Cream Of Mushroom Soup
2 cups Frozen Peas
1/2 cups Sour Cream
Salt And Pepper, to taste

Frequently Asked Questions

Quick Info

Servings
4 servings
Calories
1092 kcal
Category
Seafood

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