Keto Cajun Shrimp Sausage Skillet is the bold, spicy one-pan dinner I keep coming back to when I want something satisfying without the carbs. Juicy shrimp, smoky andouille sausage, and colorful peppers all come together in a creamy Cajun sauce that tastes like it took hours to make.
I still remember the first time I threw this together on a Tuesday night with whatever was left in my fridge. The smell of that Cajun seasoning hitting a hot buttery pan was enough to bring everyone to the kitchen without being called. This keto Cajun shrimp sausage skillet has been a weeknight staple ever since. It is the kind of meal that feels indulgent but checks every box: low-carb, high protein, and done in one pan with almost no cleanup.
Table of Contents
What You Need to Build This Skillet
I always keep andouille sausage stocked in my fridge because it brings so much smoky depth to dishes like this keto Cajun shrimp sausage skillet. Pro tip: buy large shrimp when you can since they hold up better in the hot pan and stay juicy instead of rubbery.
- 1 lb large shrimp, peeled and deveined
- 12 oz andouille sausage, sliced into rounds (smoked kielbasa works as a substitute)
- 1 tablespoon olive oil
- 1 large bell pepper (any color), diced (red adds the most sweetness and color)
- 1 large onion, diced
- 3 cloves garlic, minced (fresh is always better here)
- 1 cup heavy cream
- 1 tablespoon Cajun seasoning, or more to taste
- 1 teaspoon smoked paprika
- 1/2 cup chicken broth
- 2 tablespoons butter
- Fresh parsley, chopped for garnish
Pro tip: If you prefer a milder heat, start with 1/2 tablespoon of Cajun seasoning and build from there. Not all blends carry the same heat level.

How to Cook This Cajun Skillet Like a Pro
Have everything prepped before turning on the heat. This keto Cajun shrimp sausage skillet moves fast, and you do not want to be chopping while your shrimp overcooks.
Step 1: Heat the olive oil in a large skillet or cast-iron pan over medium-high heat. Add the sliced andouille sausage and cook until browned and slightly crispy on the edges, about 3 to 4 minutes. Remove and set aside. The browned bits left behind are flavor gold for the sauce.
Step 2: Season the shrimp with salt, pepper, and 1 teaspoon of Cajun seasoning. Add them to the same hot skillet and cook 1 to 2 minutes per side. You are looking for a pink color and opaque flesh throughout. Pull them off the heat the moment they look done. Overcooked shrimp turn rubbery fast, and there is no fixing that. Remove and set aside with the sausage.
Step 3: Reduce the heat to medium. Add the butter, then toss in the diced bell pepper and onion. Saute until softened and lightly golden, about 5 to 7 minutes. Add the minced garlic and cook for 1 more minute. Your kitchen should smell incredible at this point.
Step 4: Stir in the remaining Cajun seasoning and smoked paprika, coating the vegetables well. Pour in the chicken broth and scrape up all those flavorful browned bits from the bottom of the pan. This step builds the foundation of your sauce.
Step 5: Bring to a simmer, then reduce the heat and stir in the heavy cream. Let it gently simmer uncovered for 2 to 3 minutes until the sauce thickens slightly and coats the back of a spoon. If it seems too thin after 3 minutes, give it another minute. If it thickens too fast, splash in a little more chicken broth.
Step 6: Return the sausage and shrimp to the skillet. Toss everything together to coat in the creamy sauce and heat through for 1 to 2 minutes. Do not cook longer at this stage since the shrimp are already done.
Step 7: Top with fresh chopped parsley and serve immediately straight from the pan.
Best Ways to Serve Your Keto Cajun Shrimp Sausage Skillet
The creamy Cajun sauce pairs beautifully with anything that can soak it up without adding carbs. Here are the best sides for this keto Cajun shrimp sausage skillet:
Cauliflower Rice: The mild, fluffy texture soaks up every drop of that creamy Cajun sauce perfectly. It keeps the meal fully low-carb and adds a satisfying base without competing with the bold flavors.
Zucchini Noodles: Lightly sauteed zucchini noodles add a fresh, slightly crisp texture that balances the richness of the cream sauce without weighing it down.
On Its Own: This skillet is hearty and filling enough to stand alone. Serve it straight from the pan for the ultimate low-effort, high-reward dinner.
Steamed Broccoli: The slight bitterness of broccoli cuts through the richness of the sauce and adds fiber and extra nutrients to your plate, making the meal feel complete.
More Easy One-Pan Dinners to Try Next
If this keto Cajun shrimp sausage skillet hit the spot, there are plenty more bold one-pan meals worth adding to the weekly rotation. The Pepperoncini Chicken Skillet brings that same satisfying one-pan simplicity with tangy, briny flavor, while the One-Pan Creamy Garlic Butter Chicken delivers a rich, comforting sauce that pairs just as well with cauliflower rice or zucchini noodles.
For nights when a hearty bowl of something warming sounds perfect, the Incredible Cajun White Chicken Chili carries that same bold Cajun-inspired flavor in a cozy, protein-packed bowl. The Creamy Cajun Chicken Linguine is another great option for anyone in the family who wants to add pasta to the table alongside the skillet.
Keeping Leftovers Fresh and Delicious
Store any leftover keto Cajun shrimp sausage skillet in an airtight container in the refrigerator for up to 3 days. The flavors actually deepen overnight, making next-day leftovers worth saving.
To reheat, warm gently in a skillet over medium-low heat, adding a small splash of chicken broth or cream to loosen the sauce back up. Avoid the microwave if you can since it tends to make the shrimp tough and rubbery.
Pro tip: This dish is not ideal for freezing. The cream sauce tends to separate and the shrimp become chewy after thawing. Stick to refrigerator storage for the best texture and flavor when enjoying leftovers.
Answers to Your Top Questions
Can I use a different sausage if I do not have andouille?
Yes. Smoked kielbasa or any fully cooked smoked sausage works well as a substitute. The flavor will be milder but still very good. Just make sure it is a pre-cooked variety so it browns quickly without needing extra cook time.
My sauce turned out too thin. What went wrong?
The sauce may need a little more time to reduce. Let it simmer uncovered for an extra 2 to 3 minutes before adding the shrimp and sausage back in. You can also stir in a tablespoon of cream cheese to help thicken it quickly without changing the flavor.
Can I make this keto Cajun shrimp sausage skillet ahead of time?
You can prep the vegetables and slice the sausage a day ahead, but cook the shrimp fresh. Pre-cooked reheated shrimp can become rubbery. Cook everything up to the cream sauce step, refrigerate, then finish with the fresh shrimp right before serving.
Go Ahead and Make This Tonight
This keto Cajun shrimp sausage skillet proves that eating low-carb never has to mean boring or bland. It is fast, bold, and deeply satisfying with very little effort and just one pan to wash. Whether you are cooking for yourself or feeding a hungry family on a weeknight, this skillet delivers bold results every single time.
Try this recipe tonight and let the Cajun flavors do all the talking.
Keto Cajun Shrimp and Sausage Skillet
A spicy, creamy one-pan meal packed with bold Cajun flavor. This keto Cajun shrimp sausage skillet combines juicy shrimp, smoky andouille sausage, and colorful peppers in a rich cream sauce. Low-carb, high protein, and perfect for busy weeknights.
- Prep Time: 10 minutes
- Cook Time: 20 minutes
- Total Time: 30 minutes
- Yield: 4 servings 1x
- Category: Dinner
- Method: Saute, Simmer
- Cuisine: American, Cajun
Ingredients
- 1 lb large shrimp, peeled and deveined
- 12 oz andouille sausage, sliced into rounds
- 1 tablespoon olive oil
- 1 large bell pepper (any color), diced
- 1 large onion, diced
- 3 cloves garlic, minced
- 1 cup heavy cream
- 1 tablespoon Cajun seasoning (or more to taste)
- 1 teaspoon smoked paprika
- 1/2 cup chicken broth
- 2 tablespoons butter
- Fresh parsley, chopped for garnish
Instructions
- Heat olive oil in a large skillet over medium-high heat. Add sliced andouille sausage and cook until browned and slightly crispy on the edges, about 3 to 4 minutes. Remove and set aside.
- Season shrimp with salt, pepper, and 1 teaspoon Cajun seasoning. Add to the hot skillet and cook 1 to 2 minutes per side until pink and opaque throughout. Remove immediately and set aside with the sausage.
- Reduce heat to medium. Add butter, then diced bell pepper and onion. Saute until softened and lightly golden, about 5 to 7 minutes. Add garlic and cook 1 more minute until fragrant.
- Stir in remaining Cajun seasoning and smoked paprika to coat the vegetables. Pour in chicken broth and scrape up any browned bits from the bottom of the pan.
- Bring to a simmer, then reduce heat and stir in heavy cream. Simmer uncovered for 2 to 3 minutes until sauce thickens slightly and coats the back of a spoon.
- Return sausage and shrimp to the skillet. Toss to coat in the creamy sauce and heat through for 1 to 2 minutes. Do not overcook.
- Top with fresh chopped parsley and serve immediately over cauliflower rice or zucchini noodles.
Notes
- Do not overcook the shrimp. They only need 1 to 2 minutes per side and will finish warming through when returned to the sauce.
- Start with 1/2 tablespoon of Cajun seasoning if you prefer milder heat and build from there.
- For a richer sauce, stir in a handful of shredded cheddar or parmesan at the end.
- Not recommended for freezing. Store refrigerated in an airtight container for up to 3 days and reheat gently in a skillet with a splash of broth or cream.
Nutrition
- Serving Size: 1/4 of recipe
- Calories: 520 kcal
- Sugar: 4 g
- Sodium: 980 mg
- Fat: 39 g
- Saturated Fat: 18 g
- Unsaturated Fat: 19 g
- Trans Fat: 0 g
- Carbohydrates: 8 g
- Fiber: 1 g
- Protein: 42 g
- Cholesterol: 295 mg







