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 Hearty Tuna Casserole?

You need 12 ingredients. The key ingredients include: 2 (6 1/2 oz.) cans tuna, 3 c. egg noodles (uncooked), 1/2 c. celery, chopped, 1/3 c. green onion, chopped, and more.

Is Hearty Tuna Casserole suitable as seafood?

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

How do I store leftover Hearty Tuna Casserole?

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

Hearty Tuna Casserole Recipe

Name: Hearty Tuna Casserole
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 2 (6 1/2 oz.) cans tuna; 3 c. egg noodles (uncooked); 1/2 c. celery, chopped; 1/3 c. green onion, chopped; 1/2 c. sour cream; 2 tsp. mustard; 1/2 c. mayo; 1/2 tsp. thyme; 1/4 tsp. salt; 1 small zucchini, sliced; 1 c. shredded Monterey Jack cheese; 1 medium tomato, chopped

Try this homemade Hearty Tuna Casserole recipe the whole family will love. Made with tuna, egg noodles, celery and green onion. Easy step-by-step instru…

This Hearty Tuna Casserole relies on simple, everyday ingredients such as (6 1/2 oz.) cans tuna, egg noodles (uncooked), celery, chopped and green onion, chopped. It comes together quickly and makes 4 servings, at about 1046 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

1046

kcal

Calories

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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Hearty Tuna Casserole

Tips for the best results

Variations & substitutions

My Personal Notes

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