Leftover Tuna Casserole Recipe

Name: Leftover Tuna Casserole
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 16 ounces penne pasta, also have used egg noodles; 1 lb grilled tuna (Salmon, Halibut); 2 (10 3/4 ounce) cans cream of celery soup; 1 cup frozen peas; 1 cup chopped onion; 1/2 cup chopped mushroom; 1/2 cup chopped celery; 1 cup milk; 1/4 cup mayonnaise; Old Bay Seasoning; pepper; 1 cup parmesan cheese; 1 cup mozzarella cheese; Italian seasoned breadcrumbs; 1/4 cup butter

Servings: persons

16 ounces penne pasta, also have used egg noodles
1 lb grilled tuna (Salmon, Halibut)
2 (10 3/4 ounce) cans cream of celery soup
1 cup frozen peas
1 cup chopped onion
1/2 cup chopped mushroom
1/2 cup chopped celery
1 cup milk
1/4 cup mayonnaise
Old Bay Seasoning
pepper
1 cup parmesan cheese
1 cup mozzarella cheese
Italian seasoned breadcrumbs
1/4 cup butter

1
Cook Pasta according to directions.
2
Mix soup and milk in pan and bring to light boil.
3
Flake cooked tuna in mixing bowl.
4
Add Mayo, peas,onion, celery, mushrooms, parmesan cheese and half the mozzarella, mix well, season to taste.
5
Add pasta, and soup until you have a nice creamy mixture.
6
Put in large casserole dish, cover lightly with mozzarella cheese.
7
Combine bread crumbs and melted butter and layer over top of cheese with a spatula.
8
Bake 45 minutes at 350 degrees or until topping becomes golden brown.

1072

kcal

Calories

Fat

107

Carbs

Protein

Fat Carbs Protein

* Per serving · 4 servings · Values may vary.

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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How did you like this recipe?

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

You need 15 ingredients. The key ingredients include: 16 ounces penne pasta, also have used egg noodles, 1 lb grilled tuna (Salmon, Halibut), 2 (10 3/4 ounce) cans cream of celery soup, 1 cup frozen peas, and more.

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

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

That's it — enjoy your meal!

Leftover Tuna Casserole

Tips for the best results

Variations & substitutions

My Personal Notes

How did you like this recipe?

Frequently Asked Questions