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 Cajun Shrimp & Crab With Alfredo Sauce?

You need 11 ingredients. The key ingredients include: 1/2 lb noodles, 3 tablespoons butter, 1/2 yellow onion, 2 tablespoons minced garlic, and more.

Is Cajun Shrimp & Crab With Alfredo Sauce suitable as seafood?

Yes, Cajun Shrimp & Crab With Alfredo Sauce falls under the Seafood category and is a great choice for this type of meal.

How do I store leftover Cajun Shrimp & Crab With Alfredo Sauce?

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

Cajun Shrimp & Crab With Alfredo Sauce Recipe

Name: Cajun Shrimp & Crab With Alfredo Sauce
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 1/2 lb noodles; 3 tablespoons butter; 1/2 yellow onion; 2 tablespoons minced garlic; 1 (16 ounce) can original rotel; 2 teaspoons cayenne pepper; seasoning; 1 quart heavy whipping cream; 1 lb shrimp, boiled and cleaned; 1/2 lb lump crabmeat, cartilage removed; 1 cup parmesan cheese

Try this homemade Cajun Shrimp & Crab With Alfredo Sauce recipe the whole family will love. Made with noodles, butter, yellow onion and garlic. Easy ste…

This Cajun Shrimp & Crab With Alfredo Sauce relies on simple, everyday ingredients such as noodles, butter, yellow onion and minced garlic. It comes together quickly and makes 4 servings, at about 609 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.

My Personal Notes

Saved locally in your browser — visible only to you.

Cajun Shrimp & Crab With Alfredo Sauce

Tips for the best results

Variations & substitutions

My Personal Notes

How did you like this recipe?

Frequently Asked Questions