One Pot Pastalaya Recipe: Cajun Spice in Every Bite

This one-pot wonder brings Cajun jambalaya flavors to a creamy pasta dish that’s ready in 30 minutes. No fuss, no extra pans—just bold, spicy goodness in every bite.

The beauty lies in its simplicity. Andouille sausage, chicken, and shrimp cook alongside pasta in a rich, tomato-based broth with Cajun seasoning. The starch from the pasta thickens the sauce naturally.

You’ll get tender pasta, perfectly cooked protein, and a sauce that clings to every strand. It’s restaurant-quality comfort food without the cleanup.

Ideal for busy weeknights or feeding a crowd. Here’s how to make it.

Ingredients for One Pot Pastalaya

Short list. Big Cajun flavor. Everything cooks in one pot.

The andouille sausage makes this dish. Look for authentic Cajun brands like Savoie’s or Jacob’s at Whole Foods or a specialty grocer. If you can’t find it, any smoked sausage works, but the flavor won’t be the same. The shrimp should be wild-caught if possible (check the label at Trader Joe’s or your local seafood counter). Fresh shrimp taste sweeter, but frozen works in a pinch—just thaw it properly.

No andouille? Kielbasa or smoked sausage gets you close. Swap chicken for turkey if that’s what you’ve got. Shallots can stand in for onion, and zucchini works instead of bell pepper (add it later so it doesn’t get mushy). The Cajun seasoning is key—Tony Chachere’s is my go-to, but any blend with paprika, cayenne, and garlic works. Out of heavy cream? Half-and-half or whole milk will do, but the sauce won’t be as rich.

Leftovers keep 3-4 days in the fridge—reheats beautifully. Freeze portions for up to 3 months. The pasta will soften a bit, but the flavor stays bold. Always store in an airtight container to keep the creamy texture intact.

Step-by-Step Instructions for One Pot Pastalaya

Here’s how I build layers of Cajun flavor in a single pot—no fuss, all taste.

Step 1: Sauté the Trinity and Proteins

Heat the 2 tbsp Olive Oil in a large Dutch oven over medium-high heat. Add the 12 oz Andouille Sausage sliced into rounds and cook for 3-4 minutes until browned on both sides. This renders fat and builds a flavor base that defines the dish.

Push the sausage to one side and add the 1 lb Boneless Chicken Breast cut into bite-sized pieces. Sear for 4-5 minutes until lightly golden. Then add the 1 whole Onion finely diced, 1 whole Bell Pepper diced, and 2 pieces Celery Stalks finely diced—the holy trinity. Cook for 5 minutes until vegetables soften.

Step 2: Build the Flavor Foundation

Stir in the 4 cloves Garlic Cloves minced and cook for 30 seconds until fragrant. Immediately add the 2 tbsp Cajun Seasoning, 1 can Diced Tomatoes, and 2 cups Chicken Broth. This is where the magic happens—the seasoning blooms in the hot oil, and the liquid deglazes all those browned bits from the bottom.

Bring the mixture to a boil, then reduce heat to medium. Let it simmer for 5 minutes to allow the flavors to meld. The liquid should take on a deep, reddish hue from the Cajun seasoning and tomatoes. Taste and adjust seasoning with 1 tsp Salt and 0.5 tsp Black Pepper if needed.

Step 3: Add Pasta and Shrimp

Add the 8 oz Penne Pasta to the pot, stirring to ensure it’s fully submerged in the liquid. Cook for 8 minutes, stirring occasionally, until the pasta is almost al dente. The pasta will finish cooking in the next step, so don’t overcook it here.

Nestle the 0.5 lb Large Shrimp peeled and deveined into the pasta mixture. Cover and cook for 4-5 minutes until the shrimp turn opaque and pink and the pasta is tender. The shrimp will cook quickly, so keep an eye on them to avoid overcooking.

Step 4: Finish with Cream and Rest

Stir in the 0.5 cup Heavy Cream and let it simmer for 2 minutes until the sauce thickens slightly and coats the pasta. The cream adds a rich, velvety finish that balances the bold Cajun spices. Taste one last time and adjust seasoning with salt and pepper if needed.

Remove from heat and let it rest for 5 minutes. This allows the flavors to meld and the sauce to thicken further. The pasta will absorb some of the liquid, creating a perfectly balanced, creamy consistency that clings to every bite.

Troubleshooting Perfect Results

Pasta Not Cooked

If your pasta is still firm after the recommended time, add ½ cup hot water or extra broth and cook for 2-3 more minutes. The key is maintaining enough liquid for the pasta to absorb. I find that penne often needs this extra time in one-pot recipes. 💡

Shrimp Overcooked

Shrimp can turn rubbery if left too long. To prevent this, add them in the final 4-5 minutes of cooking and remove from heat immediately once they turn pink. If they’re already overcooked, serve them on top of the pasta rather than stirring them in.

Sauce Too Thin

Let the dish rest uncovered for 5-10 minutes off the heat. The pasta will absorb more liquid. If it’s still too thin, return to medium heat and simmer for 2-3 minutes until it thickens. Stir occasionally to prevent sticking.

Sauce Too Thick

Thin the sauce with ¼ cup chicken broth or water and stir well. Return to low heat for 2 minutes to combine. This often happens if the pasta absorbs too much liquid during cooking. Adjust seasoning after thinning.

Bland Flavor

Boost the flavor by stirring in an additional 1 tsp Cajun seasoning or a pinch of cayenne pepper for heat. I also recommend a splash of hot sauce at the end. Taste as you go to avoid over-seasoning. 🌶️

Sausage Not Browned

If your sausage didn’t brown well, don’t worry—it’ll still taste great. For better browning next time, pat the sausage dry before cooking and avoid crowding the pot. Cook in batches if needed for a deeper sear.

Frequently Asked Questions