This Cajun-style sausage and peppers recipe is a quick, one-pan meal that’s perfect for busy weeknights. With just seven ingredients and under 20 minutes of active time, you get smoky, sautéed sausage tossed with bell peppers and onions, seasoned with Cajun spices and finished with a dollop of sour cream and a sprinkle of cheddar. It’s low carb, keto-friendly, and naturally gluten free.

Best Sausage and Peppers Recipe
“One pan, seven ingredients, and less than 20 minutes to a flavorful, satisfying weeknight dinner. I make this keto sausage dish almost weekly!” — Kori
Quick and easy. This sausage and peppers dish cooks up fast in a skillet and requires minimal prep. It’s ideal when you need a simple, satisfying meal without a lot of fuss.
Cajun-inspired flavor. The combination of smoked sausage, sautéed peppers and onions, and Cajun seasoning gives this dish a bright, spicy profile that pairs well with creamy toppings like sour cream or avocado.
Diet-friendly. Naturally gluten free and low in carbs, this recipe fits keto and many low-carb plans. Use full-fat sour cream for best flavor if you’re following a ketogenic approach.
Sausage, Peppers and Onions — Ingredients

Ingredients for 4–5 servings:
- Kielbasa sausage (1 12-ounce package), or smoked sausage, andouille, or another Cajun-style sausage — cut into 1/2″ slices. Choose a product without added sugars or fillers if following keto.
- Bell peppers — 4 total, any color, sliced into strips.
- Onion — 1 large, thinly sliced (yellow, sweet, or red all work).
- Cajun seasoning — about 2 teaspoons, or adjust to taste (use a salted blend and add less salt elsewhere).
- Extra virgin olive oil — 4 tablespoons total, divided.
- Sour cream — 1/4 cup for topping (use full fat for keto).
- Cheddar cheese — 1/4 cup shredded, for garnish.
Variations
- Swap Cajun seasoning for fajita or taco seasoning, Creole blend, or lemon pepper for a different flavor profile.
- Make it dairy-free by skipping sour cream and cheese; top with avocado instead.
- Add heat with a few dashes of your favorite hot sauce or chopped fresh jalapeño.
- Stir in cooked shrimp during the final minutes for a surf-and-turf twist.
- Include extra vegetables like sliced mushrooms or diced zucchini when sautéing the peppers and onions.
How to Make Sausage with Peppers and Onions
- Preheat a 12″ skillet over medium-high heat with 1 tablespoon of olive oil. Add the sausage slices and sauté until browned on both sides, about 4–5 minutes. Remove the sausage and keep warm.
- Add the remaining 3 tablespoons olive oil to the skillet. Add the sliced onions and bell peppers and cook, stirring occasionally, until they reach your preferred tenderness — about 6–8 minutes for slightly crisp vegetables or a few minutes longer for softer results.
- Return the sausage to the skillet, sprinkle the Cajun seasoning over the mixture, and toss to combine. Cook for another 1–2 minutes so the flavors meld and the sausage is heated through. Taste and adjust seasoning as needed.
- Serve immediately with spoonfuls of sour cream and a sprinkle of shredded cheddar, or use avocado and diced tomatoes as alternative toppings.
How to Serve Cajun-Style Sausage, Peppers and Onions

- Top with sour cream and shredded cheddar right before serving.
- For a low-carb plate, serve over steamed riced cauliflower. If not restricting carbs, serve with white or brown rice, or tuck into warm tortillas for sausage and pepper wraps.
- A simple green salad or a cucumber-and-tomato side brightens the meal.
- Optional toppings: avocado slices, fresh diced tomato, or extra hot sauce for heat.
Recipe Tips
- Buy pre-cooked sausage so you only need to brown it; check packaging to confirm whether your sausage is precooked or raw.
- Always check labels if following a keto plan — some sausages contain hidden carbs or sugars.
- Adjust pepper and onion cooking time to get the texture you prefer; shorter cooking yields crisp-tender vegetables, longer yields softer, sweeter vegetables.
Storing Sausage, Peppers and Onions
Store leftovers in an airtight container in the refrigerator for up to four days. Reheat gently on the stovetop or in the microwave. This dish does not freeze well because peppers and onions can become soft and watery after thawing.
Keto Sausage and Peppers — FAQs
Is sausage and peppers Italian or American?
This dish can be prepared in many styles. This particular recipe is Cajun-inspired American using smoked or andouille-style sausage. Italian versions typically use Italian sausage and different seasonings.
How many carbs are in sausage and peppers?
Nutrition varies by ingredients and portion size. For this recipe, average carbs are about 10.7 grams per serving, mostly from the bell peppers and onion.
Are sausages OK on keto?
Many sausages are fine on keto, but check labels for fillers, added sugars, or starches that increase carbohydrate content.
The Recipe

Cajun Style Sausage and Peppers with Onions
This one-pan recipe brings together browned smoked sausage, sautéed peppers and onions, and a punch of Cajun seasoning. Quick to make and full of flavor — serve on its own, wrapped in tortillas, or over rice or riced cauliflower.
Prep time:
10 minutes
Cook time:
10 minutes
Total time:
20 minutes
Servings:
5 servings
Calories:
Approx. 325 kcal per serving
Ingredients
- 4 tablespoons extra virgin olive oil
- 1 (12-ounce) package kielbasa, smoked pork sausage, or Cajun-style sausage, sliced 1/2″ thick
- 4 bell peppers, any color, sliced
- 1 large onion, thinly sliced
- 2 teaspoons Cajun seasoning (adjust to taste)
- 1/4 cup sour cream
- 1/4 cup shredded cheddar cheese
Instructions
- Heat 1 tablespoon olive oil in a 12″ skillet over medium-high heat. Add sausage slices and brown them on both sides, about 4–5 minutes. Remove and set aside.
- Add the remaining 3 tablespoons olive oil to the skillet. Add the sliced onions and bell peppers and cook until they reach your desired tenderness, 6–10 minutes depending on preference.
- Return sausage to the pan, sprinkle Cajun seasoning over everything, and toss to combine. Cook another minute or two to heat through and meld flavors. Taste and adjust seasoning.
- Serve topped with sour cream and shredded cheddar, or garnish with avocado and diced tomato.



Kori’s Tips
- Use pre-cooked sausage to speed things up—just brown the slices. If using raw sausage, follow package cooking instructions to ensure doneness.
- Make it spicy with your preferred hot sauce or fresh chopped chiles.
- If avoiding dairy, omit the sour cream and cheese; avocado provides creaminess without dairy.
- Try serving over cauliflower rice for a full low-carb plate, or in tortillas for a family-friendly option.
Nutrition (approx. per serving)
- Calories: 325 kcal
- Carbohydrates: 10.7 g
- Protein: 11.5 g
- Fat: 27 g
- Fiber: 2.1 g
- Sugar: 4.3 g
- Sodium: 859 mg
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An easy, flavorful keto-friendly dinner idea: Cajun sausage and peppers is a one-pan meal you can throw together in minutes with just a handful of ingredients. Enjoy its bold flavors any night of the week.