Instant Pot Jambalaya Recipe Shrimp and Sausage: Cajun Spice in One Pot

This Instant Pot jambalaya brings bold Cajun flavors to your table with minimal effort. The one-pot method captures the essence of Louisiana cooking while streamlining the process.

Shrimp and sausage cook together with the “holy trinity” of vegetables, creating a rich, spicy base. The pressure cooker infuses every grain of rice with deep, complex flavors in a fraction of the time.

Traditional jambalaya requires constant stirring, but this version delivers the same authentic taste without the fuss. The result is a dish that’s hearty, aromatic, and packed with protein.

Perfect for weeknight dinners when you crave restaurant-quality results at home. Let’s get started.

Ingredients for Instant Pot Jambalaya Recipe Shrimp and Sausage

One pot, bold Cajun flavors. Shrimp, sausage, and the holy trinity come together effortlessly.

The sausage sets the tone here. Andouille from Whole Foods or a good butcher shop has the right smoky kick—avoid the pre-cooked kind from the fridge section. Shrimp should be wild-caught if possible (look for frozen at sea labels). The holy trinity (onion, bell pepper, celery) needs to be finely diced—uniform pieces cook evenly and disappear into the dish the right way.

No andouille? Kielbasa or smoked sausage works in a pinch, but add extra Cajun seasoning. Fresh shrimp not available? Frozen shrimp (thawed first, of course) is just as good. Out of fresh celery? Celery salt at a pinch—just ease up on the regular salt. The rice has to be long-grain white—jasmine or basmati will turn mushy under pressure.

Jambalaya tastes even better the next day once flavors meld. Stores in the fridge for 4-5 days or freezes for 3 months (without the shrimp—add those fresh when reheating). Leftovers reheat beautifully in the microwave or on the stovetop.

Step-by-Step Instructions for Instant Pot Jambalaya with Shrimp and Sausage

This one-pot method locks in bold Cajun flavors while keeping the process effortless and fast.

Step 1: Sauté the Holy Trinity and Sausage

Set your Instant Pot to the Sauté function and add 1 tablespoon olive oil. Once hot, add the 12 oz Andouille Sausage (sliced into half-moons) and sear for 2-3 minutes until the edges begin to caramelize.

Remove the sausage and set aside. In the same pot, add the remaining 1 tablespoon olive oil, then sauté the 1 whole Onion (finely diced), 1 whole Green Bell Pepper (finely diced), and 2 pieces Celery (finely diced) for 4-5 minutes until softened and slightly golden brown.

Add the 4 cloves Garlic Cloves (minced) and cook for 30 seconds until fragrant. This builds the flavor base that defines jambalaya. Stir frequently to prevent burning.

Step 2: Toast the Rice and Spices

Stir in the 1.5 cups Long-Grain White Rice (rinsed well) and 2 tbsp Cajun Seasoning, toasting for 1-2 minutes. This step enhances the nutty flavor of the rice and blooms the spices, ensuring maximum flavor infusion.

Add the 1 tsp Dried Thyme (crushed between your fingers) and 1 can Diced Tomatoes (with juices). The tomatoes add acidity and moisture, balancing the richness of the sausage and shrimp.

Return the seared Andouille Sausage to the pot and stir to combine all ingredients evenly.

Step 3: Pressure Cook with Broth and Bay Leaves

Pour in the 2.5 cups Chicken Broth and stir to deglaze the pot, scraping up any browned bits from the bottom. This prevents the “burn” notice on your Instant Pot and ensures all that flavor is incorporated into the dish.

Add the 2 pieces Bay Leaves and give everything a final stir. Secure the lid, set the valve to Sealing, and cook on High Pressure for 5 minutes. The rice will absorb the liquid and expand, creating that classic jambalaya texture.

Step 4: Add Shrimp and Finish Cooking

Once the pressure cooking cycle completes, perform a Quick Release. Open the lid and stir in the 1 lb Large Shrimp (peeled and deveined). The shrimp will cook in the residual heat, turning opaque and pink in just 3-4 minutes.

Season with 1 tsp Salt and 0.5 tsp Black Pepper, adjusting to taste. The shrimp should be perfectly tender—overcooking will make them rubbery. Remove the Bay Leaves before serving.

Step 5: Rest and Serve

Let the jambalaya sit for 5 minutes off the heat. This allows the flavors to meld and the rice to finish absorbing any remaining liquid. The final texture should be slightly creamy but not soupy, with each grain of rice distinct and infused with Cajun spice.

Serve hot, garnished with chopped green onions or fresh parsley if desired. The sausage will be succulent, the shrimp plump, and the rice perfectly seasoned with a hint of smokiness from the Andouille.

Flavor Customization for These Flavors

Spice Level Adjustments

For milder heat, reduce Cajun seasoning to 1 tbsp and add ½ tsp smoked paprika for depth without the kick. I often do this when serving kids or sensitive palates. The dish still tastes rich and aromatic.

Extra Smoky Flavor

Swap regular Andouille sausage for hot smoked sausage and add ½ tsp liquid smoke to the broth. This amplifies the traditional Louisiana smokiness without overpowering the shrimp.

Vegetable Boost

Add 1 cup chopped okra or 1 diced zucchini with the tomatoes for extra texture and nutrients. Okra thickens the dish naturally, while zucchini adds a subtle sweetness that pairs well with the spices.

Protein Swaps

Replace shrimp with 1 lb chicken thighs (diced) for a heartier version, or use firm tofu for a vegetarian option. Chicken needs 5 minutes pressure cooking with the rice, while tofu should be added at the end like shrimp.

Creole Tomato Twist

Use fire-roasted diced tomatoes instead of regular ones for a deeper, smokier flavor. I prefer Muir Glen brand—the charred bits add complexity that complements the sausage beautifully.

Herb Infusion

Stir in 2 tbsp chopped fresh parsley and 1 tbsp fresh thyme at the end for a bright, herbaceous finish. Fresh herbs elevate the dish from great to restaurant-quality. 🌿

Frequently Asked Questions