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 Crab And Penne Casserole?

You need 10 ingredients. The key ingredients include: 1 1/2 cups penne pasta, uncooked, 1 (17 ounce) jar alfredo sauce, 1 1/2 cups imitation crabmeat, chopped, 1 medium summer squash, sliced, and more.

Is Crab And Penne Casserole suitable as seafood?

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

How do I store leftover Crab And Penne Casserole?

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

Crab And Penne Casserole Recipe

Name: Crab And Penne Casserole
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 1 1/2 cups penne pasta, uncooked; 1 (17 ounce) jar alfredo sauce; 1 1/2 cups imitation crabmeat, chopped; 1 medium summer squash, sliced; 1 medium zucchini, sliced; 1 tablespoon dried parsley flakes; 1/4 teaspoon crushed red pepper flakes; 1 1/2 cups mozzarella cheese, shredded; 2 tablespoons dry breadcrumbs; 2 teaspoons butter, melted

Try this homemade Crab And Penne Casserole recipe the whole family will love. Made with penne pasta, alfredo sauce, imitation crabmeat and summer. Easy …

This Crab And Penne Casserole relies on simple, everyday ingredients such as penne pasta, uncooked, (17 ounce) jar alfredo sauce, imitation crabmeat, chopped and medium summer squash, sliced. It comes together quickly and makes 4 servings, at about 505 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.

No specific allergen information. Please check the ingredient list for possible allergens.

My Personal Notes

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Crab And Penne Casserole

Tips for the best results

Variations & substitutions

My Personal Notes

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