Keto Crockpot Creamy Cajun Shrimp – Easy, Flavor-Packed Comfort Food

If you love bold flavors and effortless cooking, this Keto Crockpot Creamy Cajun Shrimp is going to be a new favorite. It’s rich, a little spicy, and wonderfully satisfying without piling on carbs. The slow cooker does the heavy lifting, so you can get on with your day.

By the time you’re ready to eat, you’ve got tender shrimp in a silky, Cajun-spiced sauce that begs for a spoon. It’s weeknight-friendly, dinner-party worthy, and a total crowd-pleaser.

Save

Keto Crockpot Creamy Cajun Shrimp - Easy, Flavor-Packed Comfort Food

Print Recipe Pin Recipe

Prep Time 10 minutes mins

Cook Time 3 hours hrs

Total Time 3 hours hrs 10 minutes mins

Servings: 6 servings

Ingredients Method

Ingredients

  

• 1.5 pounds large raw shrimp, peeled and deveined (tails on or off)
• 1 tablespoon olive oil or avocado oil
• 1 medium onion, finely chopped
• 1 red bell pepper, thinly sliced
• 3 cloves garlic, minced
• 2 teaspoons Cajun seasoning (store-bought or homemade; see note below)
• 1/2 teaspoon smoked paprika (optional for extra depth)
• 1/4 teaspoon cayenne pepper (optional for heat)
• 1 cup chicken broth (preferably low sodium)
• 4 ounces cream cheese, cut into cubes and softened
• 1/2 cup heavy cream
• 2 tablespoons unsalted butter
• 1 tablespoon lemon juice
• Salt and black pepper, to taste
• 2 tablespoons chopped fresh parsley, for garnish
• Optional add-ins: 6 ounces andouille or smoked sausage (sliced), 2 cups fresh spinach, 1/4 cup grated Parmesan

Method

 

1. Prep the base: Add the onion, bell pepper, and garlic to the crockpot. Drizzle with the oil, then sprinkle in the Cajun seasoning, smoked paprika, and cayenne (if using). Pour in the chicken broth and stir to coat the veggies evenly.
2. Slow cook to build flavor: Cover and cook on Low for 2 to 3 hours, or on High for 1 to 1.5 hours, until the onions are soft and the broth is aromatic.
3. Add the creamy elements: Stir in the cream cheese, heavy cream, and butter. Cover and cook on High for 20 to 30 minutes, then whisk or stir until the sauce is smooth and creamy.
4. Add the shrimp: Pat the shrimp dry and season lightly with salt and pepper. Add them to the crockpot, pushing them into the sauce in an even layer.
5. Finish cooking: Cover and cook on High for 15 to 25 minutes, until the shrimp are pink and just cooked through. Avoid overcooking—they should be plump and tender, not rubbery.
6. Brighten and adjust: Stir in the lemon juice. Taste and adjust salt, pepper, and heat. If you want a thicker sauce, let it sit uncovered for 5 to 10 minutes, or stir in Parmesan.
7. Garnish and serve: Sprinkle with fresh parsley. Serve over cauliflower rice, sautéed zucchini ribbons, or a bed of steamed broccoli for a low-carb pairing.

Jump to Recipe Card

Save

What Makes This Special

Save

This recipe pairs the deep warmth of Cajun seasoning with a lush, creamy sauce while staying low in carbs. The crockpot helps the flavors meld beautifully, so every bite tastes like it simmered on the stove all afternoon.

It’s flexible, too—add sausage for heartiness, toss in spinach for extra greens, or adjust the heat to match your preferences. Best of all, it’s a 10-minute prep situation with a big payoff.

What You’ll Need

• 1.5 pounds large raw shrimp, peeled and deveined (tails on or off)
• 1 tablespoon olive oil or avocado oil
• 1 medium onion, finely chopped
• 1 red bell pepper, thinly sliced
• 3 cloves garlic, minced
• 2 teaspoons Cajun seasoning (store-bought or homemade; see note below)
• 1/2 teaspoon smoked paprika (optional for extra depth)
• 1/4 teaspoon cayenne pepper (optional for heat)
• 1 cup chicken broth (preferably low sodium)
• 4 ounces cream cheese, cut into cubes and softened
• 1/2 cup heavy cream
• 2 tablespoons unsalted butter
• 1 tablespoon lemon juice
• Salt and black pepper, to taste
• 2 tablespoons chopped fresh parsley, for garnish
• Optional add-ins: 6 ounces andouille or smoked sausage (sliced), 2 cups fresh spinach, 1/4 cup grated Parmesan

Note on Cajun seasoning: Choose a blend without added sugar. If sodium is a concern, look for a low-sodium version and adjust salt at the end.

Instructions

Save

1. Prep the base: Add the onion, bell pepper, and garlic to the crockpot.

   Drizzle with the oil, then sprinkle in the Cajun seasoning, smoked paprika, and cayenne (if using). Pour in the chicken broth and stir to coat the veggies evenly.

2. Slow cook to build flavor: Cover and cook on Low for 2 to 3 hours, or on High for 1 to 1.5 hours, until the onions are soft and the broth is aromatic.
3. Add the creamy elements: Stir in the cream cheese, heavy cream, and butter. Cover and cook on High for 20 to 30 minutes, then whisk or stir until the sauce is smooth and creamy.
4. Add the shrimp: Pat the shrimp dry and season lightly with salt and pepper.

   Add them to the crockpot, pushing them into the sauce in an even layer.

5. Finish cooking: Cover and cook on High for 15 to 25 minutes, until the shrimp are pink and just cooked through. Avoid overcooking—they should be plump and tender, not rubbery.
6. Brighten and adjust: Stir in the lemon juice. Taste and adjust salt, pepper, and heat.

   If you want a thicker sauce, let it sit uncovered for 5 to 10 minutes, or stir in Parmesan.

7. Garnish and serve: Sprinkle with fresh parsley. Serve over cauliflower rice, sautéed zucchini ribbons, or a bed of steamed broccoli for a low-carb pairing.

Storage Instructions

• Refrigerator: Store leftovers in an airtight container for up to 2 days. Shrimp are delicate, so shorter storage is best.
• Reheating: Warm gently in a saucepan over low heat, stirring often.

  Add a splash of broth or cream to loosen the sauce. Avoid boiling to prevent the shrimp from toughening.

• Freezer: Not recommended. Creamy sauces can separate, and shrimp can become mealy after thawing.

Save

Why This Is Good for You

• Low in carbs, high in satisfaction: The creamy sauce and spice blend deliver comfort-food vibes without the carb crash.
• Protein-rich: Shrimp deliver lean protein to keep you full and support muscle maintenance.
• Healthy fats: Cream, butter, and olive oil help you meet keto macros and aid satiety.
• Nutrient boost: Bell peppers and onions add vitamin C, antioxidants, and fiber.

  Add spinach for extra iron and folate.

Pitfalls to Watch Out For

• Overcooking the shrimp: This is the number-one mistake. Add shrimp at the end and cook just until pink and curled.
• Too salty: Many Cajun blends are salty. Use low-sodium broth and taste before adding extra salt.
• Broken sauce: Add cream cheese when the crockpot is hot enough, then whisk until smooth.

  If it looks grainy, stir in a tablespoon of hot broth at a time to emulsify.

• Hidden sugars: Some spice blends and sausages contain sugar. Read labels if you’re keeping carbs tight.

Variations You Can Try

• Shrimp + Sausage: Brown sliced andouille in a skillet and add with the onions for a smoky, meaty twist.
• Stir in fresh spinach or chopped kale during the last 10 minutes until wilted.
• Tomato-Cream Style: Add 1/2 cup no-sugar-added crushed tomatoes for a rosy, slightly tangy sauce.
• Garlic-Parmesan Cajun: Stir in 1/4 cup grated Parmesan at the end for a richer, cheesier finish.
• Heat Levels: For mild, skip cayenne and use a mild Cajun blend. For extra heat, add a pinch more cayenne or a few dashes of hot sauce.
• Dairy-Light: Swap half the cream cheese for mascarpone or use coconut cream for a dairy-reduced option (flavor will shift slightly).