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 14 ingredients. The key ingredients include: 2 Tbsp. olive oil, 3 large garlic cloves crushed or minced, 1 medium yellow onion chopped, 1 medium green pepper diced, 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: 2 Tbsp. olive oil; 3 large garlic cloves crushed or minced; 1 medium yellow onion chopped; 1 medium green pepper diced; 2 14 oz. cans diced tomatoes; 1 tsp. dried thyme; 10 oz. bottled clam juice; 2 c. instant rice; 1 1/2 c. diced smoked turkey; 12-18 jumbo shrimp uncooked and shelled; 12 mussels in shell (optional); 1 10 oz. pkg. frozen peas; salt and pepper to taste; 2 canned roasted red peppers cut in 5x1 inch strips

Try this homemade Seafood Casserole recipe the whole family will love. Made with olive oil, garlic, onion and green pepper. Easy step-by-step instructio…

This Seafood Casserole relies on simple, everyday ingredients such as olive oil, medium yellow onion chopped, medium green pepper diced and cans diced tomatoes. It comes together quickly and makes 4 servings, at about 1137 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

1137

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

Feel free to swap in similar ingredients you already have on hand and adjust seasoning to taste.

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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