Cajun Seafood Alfredo with Lobster and Crab Recipe
Introduction
Cajun Seafood Alfredo with Lobster and Crab is a rich and flavorful twist on a classic Italian favorite. This creamy pasta dish combines succulent seafood with a spicy Cajun kick for an unforgettable meal. Perfect for special occasions or a luxurious weeknight dinner.

Ingredients
- 8 oz fettuccine pasta
- 1 tablespoon salt (for boiling water)
- 2 tablespoons butter (for seafood)
- 6 oz cooked lobster meat
- 6 oz lump crab meat
- 2 tablespoons butter (for sauce)
- 3 cloves garlic, minced
- 1 1/2 cups heavy cream
- 1 tablespoon Cajun seasoning (adjust to taste)
- 3/4 cup grated Parmesan cheese
- Salt and pepper to taste
- 2 tablespoons chopped fresh parsley
- 2 tablespoons reserved pasta water (as needed)
Instructions
- Step 1: Bring a large pot of salted water to a boil. Add the fettuccine and cook until al dente according to package directions. Reserve 1/2 cup of the pasta water, then drain and set pasta aside.
- Step 2: In a large skillet, melt 2 tablespoons of butter over medium heat. Add the lobster and crab meat and gently sauté for 2–3 minutes until warmed through. Remove from the skillet and set aside.
- Step 3: In the same skillet, melt the remaining 2 tablespoons of butter. Add the minced garlic and cook for about 30 seconds until fragrant. Pour in the heavy cream and bring it to a gentle simmer. Stir in the Cajun seasoning and cook for 3–4 minutes until the sauce begins to thicken.
- Step 4: Lower the heat and stir in the grated Parmesan cheese until fully melted and the sauce is smooth. Return the seafood to the skillet, add the cooked pasta, and toss everything to coat evenly. Add reserved pasta water a little at a time until the sauce reaches your desired consistency.
- Step 5: Finish by stirring in the chopped fresh parsley and seasoning with salt and pepper to taste. Serve immediately while hot and creamy.
Tips & Variations
- For extra heat, add a pinch of cayenne pepper or more Cajun seasoning according to your preference.
- Use fresh seafood if possible for the best flavor, or substitute with shrimp or scallops if preferred.
- If the sauce gets too thick, thin it out with additional reserved pasta water or a splash of milk.
- Garnish with extra Parmesan and parsley for a beautiful presentation.
Storage
Store any leftovers in an airtight container in the refrigerator for up to 2 days. Reheat gently on the stovetop over low heat, adding a splash of cream or milk to loosen the sauce as needed. Seafood is best enjoyed fresh, so avoid reheating multiple times.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I use frozen seafood for this recipe?
Yes, but make sure to thaw the seafood completely and drain any excess liquid before cooking to avoid watering down the sauce.
How spicy is this Cajun Seafood Alfredo?
The level of spice depends on the amount of Cajun seasoning used. Start with 1 tablespoon and adjust according to your taste preferences for a mild to moderate heat.
PrintCajun Seafood Alfredo with Lobster and Crab Recipe
A rich and creamy Cajun Seafood Alfredo featuring tender lobster and lump crab meat tossed with fettuccine pasta in a luscious garlic-heavy cream sauce seasoned with Cajun spices, Parmesan cheese, and fresh parsley for a flavorful seafood pasta experience.
- Prep Time: 10 minutes
- Cook Time: 15 minutes
- Total Time: 25 minutes
- Yield: 4 servings 1x
- Category: Main Course
- Method: Stovetop
- Cuisine: Cajun
Ingredients
Pasta
- 8 oz fettuccine pasta
- 1 tablespoon salt (for boiling water)
Seafood
- 6 oz cooked lobster meat
- 6 oz lump crab meat
- 2 tablespoons butter (for seafood)
Sauce
- 2 tablespoons butter (for sauce)
- 3 cloves garlic, minced
- 1 1/2 cups heavy cream
- 1 tablespoon Cajun seasoning (adjust to taste)
- 3/4 cup grated Parmesan cheese
- Salt and pepper to taste
- 2 tablespoons chopped fresh parsley
- 2 tablespoons reserved pasta water (as needed)
Instructions
- Cook the pasta: Bring a large pot of salted water to a boil. Add fettuccine and cook until al dente according to package directions. Reserve 1/2 cup of the pasta water, then drain and set pasta aside.
- Sauté the seafood: In a large skillet, melt 2 tablespoons butter over medium heat. Add the lobster and crab meat and gently sauté for 2–3 minutes until warmed through. Remove the seafood and set aside.
- Prepare the sauce: In the same skillet, melt the remaining 2 tablespoons of butter. Add minced garlic and cook for 30 seconds until fragrant. Pour in the heavy cream and bring to a gentle simmer. Stir in the Cajun seasoning and let the sauce thicken for 3–4 minutes while stirring occasionally.
- Finish the sauce and combine: Lower the heat and stir in grated Parmesan cheese until fully melted and the sauce is smooth. Return the sautéed seafood to the skillet, add the cooked pasta, and toss everything to coat evenly. Add reserved pasta water a little at a time to adjust the sauce to your preferred consistency.
- Garnish and serve: Finish with fresh chopped parsley and a crack of black pepper. Serve immediately while hot and creamy for the best flavor and texture.
Notes
- Adjust Cajun seasoning to your preferred spice level to make the dish milder or spicier.
- Use freshly grated Parmesan cheese for best melting and flavor.
- Reserve pasta water to help loosen the sauce if it becomes too thick.
- This dish is best served immediately to enjoy the creamy texture.
- For a lower-fat option, substitute half-and-half for heavy cream, although the sauce will be less rich.
Keywords: Cajun Seafood Alfredo, Lobster Alfredo, Crab Pasta, Creamy Seafood Pasta, Cajun Pasta, Fettuccine Alfredo, Seafood Dinner

