There’s something deeply satisfying about a one-pan pasta that comes together in the time it takes to boil water. This Cajun Shrimp and Sausage Pasta is exactly that kind of weeknight win—bold, creamy, and ready before you’ve had a chance to scroll through your phone.
Why this recipe works
The magic here is in the layering. I cook the shrimp and sausage separately so each gets its own moment to develop color and flavor. The shrimp stays tender and juicy, while the sausage crisps up just enough to add smoky depth. Building the sauce in the same pan means all those browned bits get scraped up and melted into the cream, giving you a rich, complex base without extra effort.
Cajun seasoning does the heavy lifting on flavor, but tomato paste adds a subtle sweetness and body that keeps the sauce from tasting one-note. A splash of reserved pasta water at the end loosens everything into a glossy, clingy coating that hugs each bite.
Ingredients
- 10.5 oz (300 g) pasta
- 1 tablespoon olive oil
- 1/2 lb (225 g) shrimp
- 1/2 lb (225 g) smoked sausage, sliced
- 1 large shallot, finely diced
- 1 medium red bell pepper, sliced
- 2 large garlic cloves, finely chopped
- 2 tablespoons Cajun seasoning
- 2 tablespoons tomato paste
- 1 1/2 cup low-sodium chicken stock
- 1 cup half and half
- 1/4 cup grated Parmesan
- A handful fresh parsley, roughly chopped
- Salt and freshly ground black pepper to taste
This makes about 4 servings.
Step-by-step method
Start by bringing a large pot of salted water to a boil. Cook the pasta according to the package directions until al dente. Before draining, scoop out 1 to 2 cups of the starchy pasta water and set it aside. You’ll use this to adjust the sauce later.
While the pasta cooks, heat olive oil in a large, deep pan over medium heat. Add the shrimp in a single layer and cook for 3 to 4 minutes, flipping halfway through, until they turn pink and opaque. Remove the shrimp and set them aside on a plate.
In the same pan, add the sliced smoked sausage. Cook for 2 to 3 minutes, stirring occasionally, until the edges brown and crisp slightly. Remove the sausage with a slotted spoon and set it aside with the shrimp.
Add the diced shallot and sliced red bell pepper to the pan. Cook for 1 to 2 minutes, stirring occasionally, until they soften and the shallot turns translucent. Stir in the chopped garlic and cook for another minute until fragrant.
Sprinkle in the Cajun seasoning and stir in the tomato paste. Cook for 30 seconds to bloom the spices, then pour in the chicken stock to deglaze the pan, scraping up any browned bits from the bottom with a wooden spoon.
Stir in the half and half and bring the sauce to a gentle bubble. Let it simmer on low heat for 2 to 3 minutes so it thickens slightly.
Return the cooked shrimp and sausage to the pan, stirring to combine. Add the drained pasta and toss everything together until the noodles are fully coated in the sauce. If the sauce looks too thick, add a splash of the reserved pasta water to loosen it.
Stir in the grated Parmesan and fresh parsley. Taste and adjust the seasoning with salt and black pepper as needed. Serve immediately while hot.
Common mistakes and how to avoid them
Overcooking the shrimp. Shrimp cook fast—3 to 4 minutes is usually enough. Pull them off the heat as soon as they turn opaque and pink. They’ll warm back up when you add them to the sauce later.
Skipping the pasta water. That starchy liquid is your secret weapon for a silky sauce. If your pasta looks dry or clumpy after tossing, add a few tablespoons at a time until it loosens up.
Burning the garlic. Garlic goes from fragrant to bitter in seconds. Add it after the shallot and pepper have softened, and keep the heat at medium so it cooks gently.
Using high heat with the cream. Half and half can break or curdle if it boils too hard. Keep the heat low once you add it, and let the sauce bubble gently rather than rolling.
Substitutions and adjustments
Pasta shape. Any short or long pasta works here. Penne, rigatoni, or fettuccine are all good choices. Just adjust the cooking time based on the package directions.
Sausage type. Smoked sausage or andouille both work well. If you want more heat, go with a spicy andouille. For a milder version, use a basic smoked sausage or even chicken sausage.
Cream alternative. Half and half gives a rich but not heavy sauce. You can swap in heavy cream for more richness, or use whole milk mixed with a teaspoon of flour for a lighter version.
Vegetable add-ins. Spinach, zucchini, or mushrooms would all work stirred in with the shallot and pepper. Add them early enough to soften before you build the sauce.
Serving suggestions
- A simple green salad with a sharp vinaigrette to cut through the richness
- Crusty bread or garlic bread for soaking up extra sauce
- Steamed broccoli or green beans on the side for a quick veggie boost
Storage and reheating notes
This pasta is best eaten fresh, but leftovers keep in the fridge for up to 3 days. Reheat gently on the stovetop with a splash of water or stock to loosen the sauce. The pasta will absorb liquid as it sits, so you may need to add more than you think.
Freezer instructions
I don’t recommend freezing this dish. Cream-based sauces can separate and turn grainy when thawed, and the pasta tends to get mushy. If you need to meal prep, cook the components separately and assemble when ready to eat.
FAQ
Can I make this without shrimp? Yes. Use all sausage or swap in cooked chicken, diced and browned in the pan. Adjust cooking time based on the protein you choose.
How spicy is this? It depends on your Cajun seasoning. Most blends have a moderate kick. If you’re sensitive to heat, start with 1 tablespoon and taste before adding more.
Can I use milk instead of half and half? You can, but the sauce will be thinner. To thicken it, mix a teaspoon of flour into the milk before adding, or let it simmer longer to reduce.
What if I don’t have chicken stock? Vegetable stock works fine. In a pinch, you can use water with a pinch of salt and a dash of soy sauce or Worcestershire for depth.
There’s no need to overthink this one. It’s the kind of recipe you come back to when you want something that feels like a treat but doesn’t require a lot of moving parts. The shrimp and sausage do their thing, the sauce comes together in one pan, and you’ve got a hot, flavorful dinner on the table before the kitchen gets too messy.
Cajun Shrimp and Sausage Pasta
Ingredients
Method
- Bring a large pot of water to a boil, salt it and cook the pasta al dente according to the directions on the package. Reserve 1-2 cups of pasta water before draining.
- Heat the olive oil in a large, deep pan and cook the shrimp for 3-4 minutes over medium heat, flipping them halfway. Take the shrimp out of the pan and set it aside.
- Add the smoked sausage to the same pan and cook for 2-3 minutes until slightly crispy. Take the sausage out of the pan with a slotted spoon and set it aside.
- Add the shallot and red bell pepper to the same pan and cook for 1-2 minutes, stirring occasionally.
- Next, add the garlic and continue to cook for a further minute.
- Stir in the Cajun seasoning and tomato paste, then add the chicken stock to deglaze the pan.
- Add the half and half, stir to combine and allow the sauce to bubble for 2-3 minutes on low heat.
- Add the cooked shrimp and smoked sausage back to the pan and stir to combine.
- Transfer the cooked pasta to the pan and toss to cover it in the sauce. Add a splash of the reserved pasta water if it looks too thick.
- Stir in the grated Parmesan and fresh parsley, adjust the seasoning and serve immediately.
Notes
Amount Per Serving: Calories: 535Total Fat: 29gSaturated Fat: 11gTrans Fat: 0gUnsaturated Fat: 15gCholesterol: 181mgSodium: 591mgCarbohydrates: 37gFiber: 3gSugar: 7gProtein: 31g
