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 Pasta Crab Casserole?

You need 11 ingredients. The key ingredients include: 8 ounces uncooked spiral pasta, 1 large onion, chopped, 1/2 pound sliced fresh mushrooms, 1/2 cup chopped green pepper, and more.

Is Pasta Crab Casserole suitable as seafood?

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

How do I store leftover Pasta Crab Casserole?

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

Pasta Crab Casserole Recipe

Name: Pasta Crab Casserole
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 8 ounces uncooked spiral pasta; 1 large onion, chopped; 1/2 pound sliced fresh mushrooms; 1/2 cup chopped green pepper; 1/2 cup butter; 2 garlic cloves, minced; 1 pound imitation crabmeat, chopped; 1/2 cup sour cream; 2 teaspoons salt; 1-1/2 teaspoons dried basil; 1-1/2 cups shredded cheddar cheese

Try this homemade Pasta Crab Casserole recipe the whole family will love. Made with spiral pasta, onion, mushrooms and green pepper. Easy step-by-step i…

This Pasta Crab Casserole relies on simple, everyday ingredients such as uncooked spiral pasta, large onion, chopped, sliced fresh mushrooms and chopped green pepper. It comes together quickly and makes 4 servings, at about 684 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

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.

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Pasta Crab Casserole

Tips for the best results

Variations & substitutions

My Personal Notes

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