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 Tuna-Noodle Casserole?

You need 13 ingredients. The key ingredients include: 1 tablespoon stick margarine or butter, 3/4 cup diced onion, 1 cup 2% reduced-fat milk, 1 (10 1/2-ounce) can condensed reduced-fat cream of mushroom soup with cracked pepper and herbs, undiluted (such as Healthy Choice), and more.

Is Tuna-Noodle Casserole suitable as seafood?

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

How do I store leftover Tuna-Noodle Casserole?

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

Tuna-Noodle Casserole Recipe

Name: Tuna-Noodle Casserole
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 1 tablespoon stick margarine or butter; 3/4 cup diced onion; 1 cup 2% reduced-fat milk; 1 (10 1/2-ounce) can condensed reduced-fat cream of mushroom soup with cracked pepper and herbs, undiluted (such as Healthy Choice); 3 cups hot cooked egg noodles (about 6 ounces uncooked pasta); 1 1/4 cups frozen green peas, thawed; 1 tablespoon lemon juice; 1/4 teaspoon salt; 1/4 teaspoon pepper; 2 (6-ounce) cans low-sodium tuna in water, drained and flaked; 1 (2-ounce) jar diced pimiento, drained; 1/3 cup fresh breadcrumbs; 2 tablespoons grated Parmesan cheese

Try this homemade Tuna-Noodle Casserole recipe the whole family will love. Made with margarine, onion, milk and condensed reduced-fat cream. Easy step-b…

This Tuna-Noodle Casserole relies on simple, everyday ingredients such as stick margarine or butter, diced onion, 2% reduced-fat milk and frozen green peas, thawed. It comes together quickly and makes 4 servings, at about 936 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

Tips for the best results

Read through all the steps once before you start and measure out your ingredients first — it makes everything go more smoothly.
Taste as you go and adjust the seasoning before serving.
Avoid overcrowding the pan — cook in batches if needed for the best texture.
Let the dish rest for a few minutes before serving so the flavors settle.
Store leftovers in an airtight container in the fridge and enjoy within a few days.

Variations & substitutions

Use a neutral oil or a plant-based spread in place of butter for a dairy-free version.
Coconut cream is a reliable plant-based alternative to dairy cream.

No specific allergen information. Please check the ingredient list for possible allergens.

My Personal Notes

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Tuna-Noodle Casserole

Tips for the best results

Variations & substitutions

My Personal Notes

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