30-Minute Cajun Shrimp and Sausage Pasta
This Cajun shrimp and sausage pasta delivers a smoky, spicy cream sauce that clings to every bite of penne, with tender shrimp and crisp-edged sausage in under half an hour. It is the kind of dinner that makes a Tuesday feel like a Friday, and it all happens in one skillet.
You get the deep savory notes from the andouille, a kick of heat from the spice blend, and a silky sauce that tempers it all. It is the weeknight recipe I keep coming back to when I want something bold without a pile of dishes.
What Makes This Pasta So Good
The sausage sears first and leaves behind a dark, sticky fond that builds the base of the sauce. That layer of caramelized flavor carries through the whole dish, so every forkful tastes layered instead of flat.
The cream sauce comes together fast, just enough to coat the pasta, and the shrimp cook in the last few minutes so they stay plump and tender. You never have to worry about tough shrimp or a watery sauce with this method.
Ingredients
- 8 oz penne pasta: any short shape like rigatoni or ziti works
- 4 oz andouille sausage, sliced into rounds: smoked sausage is a fine substitute
- 12 oz large shrimp, peeled and deveined: tail on or off, whatever you prefer
- 1 tbsp olive oil: for searing
- 1 tbsp Cajun seasoning: use a salt-free blend if you like to control the sodium
- 3 cloves garlic, minced
- ½ cup heavy cream: half-and-half works but the sauce will be thinner
- ¼ cup chicken broth
- 2 tbsp tomato paste
- Small handful fresh parsley, chopped: for serving
- Salt to taste: only needed if your Cajun seasoning is salt-free
Variations and Substitutions
- Protein swap: sliced chicken thigh sears in the same way as the sausage, just add 2 extra minutes of cooking time.
- Heat level: cut the Cajun seasoning by half and omit the pepper for a milder version, or stir in ¼ tsp cayenne with the cream.
- Dairy-free: swap the heavy cream for full-fat coconut milk and skip the parsley for fresh cilantro.
- Pasta choice: any short, sturdy shape works, but avoid long noodles here because the chunky sauce needs a fork-friendly bite.
If you like a brighter, tomato-driven pasta, Cajun Chicken Alfredo with fettuccine is another go-to.
How to Make Cajun Shrimp and Sausage Pasta
Step 1: Cook the Pasta
Bring a large pot of salted water to a boil and cook the 8 oz penne until al dente according to package directions. You want it a little firmer than usual since it will finish in the skillet later. Reserve ¼ cup of the starchy pasta water, then drain and set the pasta aside.
The water should taste like the sea, so be generous with the salt. That is your only chance to season the pasta itself from the inside.
Step 2: Sear the Sausage
Set a large skillet or sauté pan over medium-high heat and add the 1 tbsp olive oil. Once the oil shimmers, lay the andouille rounds in a single layer and cook for about 4 minutes, turning once, until both sides are deep brown and the edges start to crisp. Transfer the sausage to a plate with a slotted spoon, leaving the rendered fat in the pan.
The fond on the bottom of the skillet will look dark and almost sticky. Do not wipe it out because all of that flavor is going straight into the sauce.
Step 3: Sauté the Shrimp
Pat the shrimp dry with paper towels and toss them with 1 tbsp Cajun seasoning until evenly coated. Drop the shrimp into the same skillet in a single layer and cook for about 2 minutes per side, just until opaque and pink. The pan should still be hot enough to get a light sear. Scoop the shrimp out and set them with the sausage.
If your skillet is small, cook the shrimp in two batches so they sear instead of steam. Overcrowding cools the pan too much, and you end up with rubbery shrimp.
Step 4: Build the Sauce
Lower the heat to medium and add the 3 minced garlic cloves, stirring for 30 seconds until fragrant. Spoon in the 2 tbsp tomato paste and cook it for a full minute, stirring constantly to take the raw edge off. Pour in the ½ cup heavy cream and ¼ cup chicken broth, scraping up any browned bits from the bottom of the pan. Let it bubble gently for 2 minutes until it thickens enough to coat the back of a spoon.
The sauce will look a little tight at first, but the reserved pasta water will loosen it later. Taste it now and add a pinch of salt only if the sausage and Cajun seasoning have not already carried enough saltiness.
Step 5: Toss and Serve
Slide the drained pasta, seared sausage, and shrimp back into the skillet. Pour in a splash of the reserved pasta water and toss everything with tongs for 1 minute over low heat until the pasta soaks up the sauce and the shrimp are heated through. Scatter fresh parsley over the top and serve immediately.
You are looking for a glossy, clingy sauce, not a pool of liquid at the bottom. If it tightens up on the way to the table, another tiny splash of that starchy water brings it right back.
Tips for the Best Cajun Pasta
- Use the pasta water, not plain water, to adjust the sauce. The starch helps the cream coat the noodles without getting greasy.
- Dry the shrimp thoroughly before seasoning them. Any surface moisture will steam them in the pan instead of giving a sear.
- Tomato paste needs that full minute of cooking to lose its raw, tinny taste and develop deeper color. Do not rush it.
Cook times by shrimp size:
| Shrimp size (count per lb) | Searing time per side |
|---|---|
| 16–20 (extra large) | 2½–3 minutes |
| 21–25 (large) | 2 minutes |
| 31–40 (medium) | 1½ minutes |
Storing Leftovers
- Refrigerate: cool completely and store in an airtight container for up to 3 days. The sauce may thicken when cold, so stir in a splash of milk or broth when reheating.
- Reheating: warm gently in a skillet over low heat with a few tablespoons of liquid. A microwave works in a pinch, but the shrimp can turn rubbery fast, so use 30-second bursts and stir between them.
What to Serve with Cajun Shrimp and Sausage Pasta
A simple green salad with a sharp vinaigrette cuts through the richness of the cream sauce and cleans the palate between bites. For something more substantial, warm, crusty bread is perfect for sopping up any leftover sauce, and the chewiness plays against the tender shrimp. If you want a vegetable side, quick-blanched green beans tossed with lemon juice and a pinch of salt keep the meal bright without adding another heavy element.
Frequently Asked Questions
Can I use pre-cooked sausage?
Yes, slice it and sear as directed. It will brown faster, so watch it closely after 2 minutes.
What if my Cajun seasoning has salt?
Start with a scant tablespoon and taste the sauce before adding any extra salt. Most commercial blends are salty enough on their own.
Can I prep any of this ahead?
You can slice the sausage and mince the garlic earlier in the day. Keep the shrimp cold and do not season them until right before they hit the pan.
Shrimp and Sausage Pasta Recipe
Ingredients
Method
- Cook penne in salted boiling water until al dente. Reserve ¼ cup pasta water, then drain and set aside.
- Sear sausage in olive oil over medium-high heat for about 4 minutes until browned and crisp. Remove and set aside, leaving the fat in the pan.
- Toss shrimp with Cajun seasoning and sear in the same skillet for 2 minutes per side until pink. Remove and set aside.
- Lower heat to medium, cook garlic and tomato paste for 1 minute, then stir in heavy cream and chicken broth. Simmer 2 minutes until thickened.
- Return pasta, sausage, and shrimp to the skillet along with a splash of pasta water. Toss over low heat for 1 minute, top with parsley, and serve.
