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 Seafood Casserole?

You need 12 ingredients. The key ingredients include: 1 (8 oz.) pkg. nonfat cream cheese, 3/4 c. margarine, divided, 2 c. chopped onion, 1 c. chopped green bell pepper, and more.

Is Seafood Casserole suitable as seafood?

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

How do I store leftover Seafood Casserole?

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

Seafood Casserole Recipe

Name: Seafood Casserole
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 1 (8 oz.) pkg. nonfat cream cheese; 3/4 c. margarine, divided; 2 c. chopped onion; 1 c. chopped green bell pepper; 3/4 c. chopped celery; 2 c. sliced fresh mushrooms; 1 lb. shrimp, peeled and deveined; 1 (10 oz.) can mushroom soup; 1 tsp. hot pepper sauce (Tabasco); 1/2 tsp. ground red pepper (chili powder); 1 lb. fresh crabmeat, rinsed (check for shells); 1 1/2 c. cooked rice

Try this homemade Seafood Casserole recipe the whole family will love. Made with nonfat cream cheese, margarine, onion and green bell pepper. Easy step-…

This Seafood Casserole relies on simple, everyday ingredients such as margarine, divided, chopped onion, chopped green bell pepper and chopped celery. It comes together quickly and makes 4 servings, at about 628 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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Seafood Casserole

Tips for the best results

Variations & substitutions

My Personal Notes

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