If you’re craving a hearty, flavorful dish that warms you up from the inside out, this Instant Pot Cajun Potato Soup Recipe is about to become your new go-to comfort food. It’s loaded with tender potatoes, vibrant veggies, and a punch of bold Cajun spices that come together in the most effortless way thanks to the magic of the Instant Pot. Perfect for busy weeknights or anytime you want a cozy bowl of goodness that feels like a hug in a bowl, this soup is both satisfying and simple to make. Trust me, once you try this recipe, your kitchen will be filled with inviting aromas and your taste buds will be dancing with delight.

Ingredients You’ll Need
Gathering your ingredients for this Instant Pot Cajun Potato Soup Recipe is a breeze, yet each one brings something special to the table. From the creamy potatoes to the colorful frozen veggies and the vibrant Cajun seasoning, every element plays a key role in creating a flavor-packed and textured soup.
- 4 medium potatoes (peeled and diced): These form the hearty base, giving the soup its comforting, creamy heart.
- 1 onion (chopped): Adds a touch of sweetness and depth as it softens during cooking.
- 2 carrots (diced): For a subtle sweetness and vibrant color that brightens the bowl.
- 2 celery stalks (diced): Brings a fresh earthiness and slight crunch to balance the soup.
- 3 cloves garlic (minced): Garlic elevates the savory notes, delivering that irresistible aroma.
- 1 cup frozen green beans: Adds a splash of green and crispness without the fuss of fresh prep.
- 1 cup frozen corn: Sweet bursts of texture and natural sweetness that harmonize beautifully.
- 1 cup vegetable broth: Provides a flavorful liquid foundation, keeping the soup rich and savory.
- 2 tbsp Cajun seasoning (adjust to taste): The star spice blend that brings warmth, heat, and those classic Louisiana flavors.
- 1 tsp garlic powder: Enhances the garlic flavor in every spoonful.
- 1 tsp onion powder: Reinforces the oniony goodness throughout the soup.
- Salt and pepper to taste: Essential for bringing all the flavors together perfectly.
How to Make Instant Pot Cajun Potato Soup Recipe
Step 1: Cook the Vegetables
Start by adding 1 cup of water to the Instant Pot insert and placing a steamer basket inside. Toss in your diced potatoes, green beans, and corn. Lock the lid securely and set the valve to sealing. Pressure cook on high for 5 minutes to soften these veggies to the perfect tenderness, setting a hearty foundation for the soup.
Step 2: Sauté the Aromatics
Release the pressure and switch the Instant Pot to sauté mode. Add a tablespoon of oil to the bottom, then sauté the chopped onion, diced carrots, and minced garlic. Cook for about 5 to 7 minutes until everything is beautifully softened and fragrant, which creates a flavor-packed base that brings the dish to life.
Step 3: Combine Ingredients
Next, stir in the vegetable broth along with Cajun seasoning, garlic powder, onion powder, salt, and pepper. Add the steamed vegetables back into the pot, mixing everything together so the flavors blend harmoniously. This is where the soup starts to really come together with a perfect balance of spice and richness.
Step 4: Simmer
Seal the Instant Pot once more and set it to pressure cook on high for an additional 5 minutes. After cooking, allow a natural pressure release for 10 minutes before carefully switching the valve to venting to release any remaining steam. This step deepens the flavors and melds all ingredients into a luscious, comforting soup.
Step 5: Serve Warm
Give the soup a final stir and taste, adjusting the seasoning if needed. Serve it piping hot for the ultimate cozy meal. This is where you start to experience the heartwarming magic of the Instant Pot Cajun Potato Soup Recipe that you’ll want to dive into again and again.
How to Serve Instant Pot Cajun Potato Soup Recipe

Garnishes
Enhance your bowl by adding garnishes such as a dollop of cool sour cream, a sprinkle of shredded cheese, or fresh herbs like parsley or cilantro. These touches add creaminess, color, and a fresh brightness that elevate every spoonful.
Side Dishes
A crusty slice of bread is a perfect companion, ready to soak up every bit of the flavorful broth. For a lighter option, a crisp green salad brings refreshing contrast and balances the velvety richness of the soup.
Creative Ways to Present
Serve this soup in rustic bowls for a cozy vibe or use clear glass mugs for a charming presentation at casual gatherings. Add a swirl of hot sauce or a sprinkle of smoked paprika on top for an eye-catching finish that hints at the vibrant flavors inside.
Make Ahead and Storage
Storing Leftovers
Let your soup cool slightly before transferring it into airtight containers. Stored in the refrigerator, it will stay fresh for up to four days, making it an ideal make-ahead option for busy weekdays.
Freezing
This soup freezes beautifully! Portion it out into freezer-safe containers or bags and store for up to three months. When you’re ready for a quick and comforting meal, just thaw and enjoy.
Reheating
Reheat your Cajun potato soup gently either on the stovetop over medium heat or in the microwave until it’s warmed through. Stir occasionally to maintain an even temperature and enjoy just like fresh.
FAQs
Can I use fresh vegetables instead of frozen in this recipe?
Absolutely! Fresh vegetables will work just as well, though cooking times may vary slightly. Adjust accordingly to ensure everything is tender and flavorful.
Is this soup spicy?
The heat level depends on the amount of Cajun seasoning you use. You can easily adjust the spice by adding more or less to suit your preference, making this recipe perfect for both mild and bold palates.
Can I make this soup vegan?
Yes! Since the recipe already uses vegetable broth and plant-based ingredients, it’s naturally vegan-friendly. Just ensure your toppings also align with your dietary preferences.
What can I substitute for Cajun seasoning if I don’t have it on hand?
If you don’t have Cajun seasoning, a mix of paprika, cayenne pepper, garlic powder, onion powder, thyme, and oregano can create a similar spicy, aromatic blend.
Do I need an Instant Pot specifically to make this recipe?
While the Instant Pot makes cooking this soup fast and convenient, you can adapt the recipe for stovetop cooking too. The flavors remain fantastic either way!
Final Thoughts
I can’t recommend this Instant Pot Cajun Potato Soup Recipe enough for anyone looking to add a little Southern-inspired comfort to their meal rotation. It’s simple, flavorful, and soul-satisfying, making it just the kind of dish you’ll want to come back to again and again. So grab your ingredients, fire up your Instant Pot, and let this cozy soup become a cherished favorite in your kitchen.
Print
Instant Pot Cajun Potato Soup Recipe
- Prep Time: 15 minutes
- Cook Time: 20 minutes
- Total Time: 35 minutes
- Yield: 6 servings
- Category: Soup
- Method: Instant Pot
- Cuisine: Cajun
- Diet: Vegetarian
Description
This Instant Pot Cajun Potato Soup is a hearty and flavorful soup combining tender potatoes, fresh vegetables, and bold Cajun spices. Prepared efficiently using an Instant Pot, it balances comfort and spice for a satisfying meal that’s perfect year-round. The soup is easy to customize with toppings like sour cream, cheese, and fresh herbs, making it a versatile dish for any gathering or simple weeknight dinner.
Ingredients
Key Ingredients
- 4 medium potatoes, peeled and diced
- 1 onion, chopped
- 2 carrots, diced
- 2 celery stalks, diced
- 3 cloves garlic, minced
- 1 cup frozen green beans
- 1 cup frozen corn
- 1 cup vegetable broth
- 2 tbsp Cajun seasoning (adjust to taste)
- 1 tsp garlic powder
- 1 tsp onion powder
- Salt and pepper to taste
- 1 tbsp oil (for sautéing)
- Sour cream, shredded cheese, and fresh herbs (optional for garnish)
Instructions
- Cook the Vegetables: Add 1 cup of water to the Instant Pot insert and place a steamer basket inside. Add the diced potatoes, frozen green beans, and frozen corn to the basket. Secure the lid and set the valve to sealing.
- Pressure Cook Vegetables: Cook on high pressure for 5 minutes. Once done, carefully release pressure according to the Instant Pot instructions and remove the steamer basket.
- Sauté the Aromatics: Switch the Instant Pot to sauté mode and add a tablespoon of oil to the bottom of the pot. Sauté the chopped onion, diced carrots, diced celery, and minced garlic until softened and fragrant, about 5-7 minutes.
- Combine Ingredients: Stir in the vegetable broth, Cajun seasoning, garlic powder, onion powder, salt, and pepper. Add the cooked potatoes, green beans, and corn back into the pot, stirring well to combine all ingredients.
- Simmer: Secure the lid again and set the valve to sealing. Cook on high pressure for an additional 5 minutes. Allow for a natural pressure release for 10 minutes, then switch the valve to venting to release any remaining pressure.
- Serve Warm: Adjust seasoning if needed. Serve the soup hot, garnished with optional sour cream, shredded cheese, or fresh herbs as desired.
- Suggested Side Dishes: Serve with crusty bread for dipping and a fresh green salad to balance the hearty soup. A sprinkle of fresh parsley or cilantro adds a vibrant, fresh note.
Notes
- Use fresh herbs like parsley or cilantro to garnish for added flavor and color.
- Adjust the Cajun seasoning according to your preferred spice level; reduce for milder taste.
- This soup can be batch-frozen in freezer-safe containers for up to 3 months.
- Store leftovers in an airtight container in the refrigerator for up to 4 days.
- Reheat using a microwave or stovetop for best taste and texture.

