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 Peggy'S Tuna Casserole ?

You need 10 ingredients. The key ingredients include: 1/2 C chpd onion, sauted in hot oil, 1 Can Cream Mushroom soup, 2/3 C milk, 1/3 C grated parmensan, drained, and more.

Is Peggy'S Tuna Casserole suitable as seafood?

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

How do I store leftover Peggy'S Tuna Casserole ?

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

Peggy'S Tuna Casserole Recipe

Name: Peggy'S Tuna Casserole
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 1/2 C chpd onion, sauted in hot oil; 1 Can Cream Mushroom soup; 2/3 C milk; 1/3 C grated parmensan, drained; 9 1/4 oz can tuna, drained; 3 oz jar mushrooms, drained; 1/2 C chpd ripe olives; 2 T minced parsley; 2 tsp lemon juice; 3 C (6 oz) noodles, cooked and drained

Try this homemade Peggy'S Tuna Casserole recipe the whole family will love. Made with chpd onion, Cream Mushroom soup, milk and tuna. Easy step-by-step …

This Peggy'S Tuna Casserole relies on simple, everyday ingredients such as cream mushroom soup, c milk, c grated parmensan, drained and can tuna, drained. It comes together quickly and makes 4 servings, at about 826 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

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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Peggy'S Tuna Casserole

Tips for the best results

Variations & substitutions

My Personal Notes

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Frequently Asked Questions