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This Cajun shrimp fettuccine alfredo is packed full of flavor with a little Cajun twist. It’s perfect for busy weeknights and you’ll say goodbye to jarred sauces when you see how easy it is to make your own! Plus the little punch of andouille sausage really brings that Cajun flavor. 

Are you craving the PERFECT pasta recipe?

Well, you’re going to love this Cajun shrimp fettuccine alfredo recipe!

This pasta is creamy, smoky, spicy, and jam-packed full of flavor!

It’s made with both andouille sausage and shrimp with the addition of Cajun seasoning, garlic, onions, and of course Parmesan cheese.

Plus this dish is made in JUST 30 minutes.

You absolutely cannot ask for more flavor in such a short amount of time.

Trust me, your whole family will love this creamy Cajun shrimp pasta dish!

Ingredients for Cajun shrimp fettuccine alfredo:

• Pasta – I used fettuccine pasta for this dish but honestly any pasta you want to use for this dish will work well. Spaghetti, penne, rotini, etc. all will work well.
• Shrimp – I used large frozen shrimp that I defrosted. Fresh shrimp will work well here too.
• Andoullie sausage – You can find smoky andoullie sausage in most grocery stores near where you find Italian sausage or precooked chicken sausage.
• Cajun seasoning – I really like to use a no-salt added Cajun seasoning for this dish so I get all the Cajun spicy flavor without all the salt.
• Onion and garlic – A classic ingredient for both Cajun and Italian cuisiens.
• Chicken stock – This adds flavor and helps deglaze the pan after you cook your shrimp and vegetables.
• Heavy cream – Heavy cream helps gives this pasta an extra creamy sauce.
• Parmesan cheese – What alfredo sauce is complete without adding in some Parmesan cheese?
• Cayenne pepper – Add more or less depending on your love of spice!

Substitutions and additions

If you’re looking to switch some things up here are a few tips:

• More vegetables – Want to bulk up the pasta even more? Try adding in sliced bell peppers or even chopped cherry tomatoes. Both will add complimentary flavors that will work well with the creamy Cajun fettuccine sauce.
• Swap out the protein – Can’t find andouille sausauge? Try using a smoked Polish sausaget in it’s place. Not a fan of shrimp? Use chicken. Or try my Instant Pot Cajun Chicken Alfredo for something similar but different.
• Change the pasta – Don’t have fettuccine on hand? You can use any long pasta in it’s place. Not a fan of twirling your pasta? How about trying cavatappi, penne, or ziti in its place.
• Go heavy on the spice – Craving a super spicy pasta? Increase the cayenne pepper!

What shrimp is best for pasta?

For this recipe, I used frozen shrimp that I defrosted overnight in the refrigerator.

When shrimp goes on sale I often buy a few bags to have on hand for fast and easy dinner recipes. It defrosts fairly quickly and is a great source of B12, they’re high in protein, low in mercury, and cook up quickly.

If you’re lucky to live near the coast fresh shrimp will work just as well in this recipe.

More flavorful pasta recipes

• Love all things Cajun? Try my One Pot Cajun Pastalaya.
• Need a perfect summer pasta? Try my Pesto Chicken Caprese Pasta.
• One of my most popular recipes! Try my One Pot Ground Chicken Fajita Pasta.
• Want a fast and easy pasta recipe? Try my Chicken Broccoli Ziti.