Keto Cajun Chicken Pasta (Low-Carb) – Creamy, Spicy, and Satisfying
Creamy, bold, and weeknight-friendly, this Keto Cajun Chicken Pasta hits all the cravings without the carb crash. It’s rich with tender chicken, smoky spices, and a silky sauce that clings to low-carb noodles. You’ll get big flavor in under 40 minutes, using simple ingredients you probably already have.
This is comfort food with a lighter touch—perfect for anyone cutting carbs or just looking for a tasty, balanced meal.
Ingredients
Method
- Prep the noodles: If using shirataki, drain, rinse well, and dry-sauté in a nonstick pan for 2–3 minutes to remove excess moisture. If using zoodles, salt lightly and let them sit for 10 minutes, then pat dry. Set aside.
- Season the chicken: Pat dry. Toss with 1–2 tablespoons of Cajun seasoning, a pinch of salt, and a crack of black pepper. Coat evenly.
- Sear the chicken: Heat 1 tablespoon oil and 1 tablespoon butter in a large skillet over medium-high heat. Add chicken in a single layer and sear 3–4 minutes per side until cooked through. Remove to a plate.
- Sauté the veggies: In the same pan, add remaining oil and butter. Add bell peppers and red onion with a pinch of salt. Cook 4–5 minutes until tender-crisp. Add garlic and cook 30 seconds until fragrant.
- Build the sauce: Reduce heat to medium. Stir in chicken broth, scraping up browned bits. Add heavy cream and remaining Cajun seasoning (start with 1 teaspoon; adjust to taste). Simmer 3–4 minutes to thicken slightly.
- Thicken and enrich: Whisk in cream cheese, if using, until smooth. Stir in Parmesan until melted. Taste and adjust salt, pepper, and cayenne if you want more heat.
- Combine: Return chicken and any juices to the pan. Add noodles and toss until coated and heated through, 1–2 minutes. Avoid overcooking zoodles to keep them from getting soggy.
- Finish: Add a squeeze of lemon juice and a little zest for brightness. Garnish with parsley or green onions. Serve hot.
What Makes This Recipe So Good
- Big Cajun flavor: A blend of paprika, garlic, onion, and cayenne gives the sauce a warm, smoky kick.
- Low-carb pasta swap: Shirataki or zucchini noodles deliver that pasta vibe without the starch.
- Creamy, not heavy: A combination of heavy cream and chicken broth keeps the sauce rich yet manageable.
- Quick and flexible: Ready in about 30–40 minutes, with easy swaps for spice level and veggies.
- Great leftovers: The flavors deepen by the next day, and it reheats beautifully.
Shopping List
- Chicken: 1.5 pounds boneless, skinless chicken breasts (or thighs), sliced into thin strips
- Cajun seasoning: 2–3 tablespoons (store-bought or homemade)
- Olive oil or avocado oil: 2 tablespoons
- Butter: 2 tablespoons
- Garlic: 3–4 cloves, minced
- Bell peppers: 2 (any colors), sliced thin
- Red onion: 1 small, sliced thin
- Chicken broth: 1/2 cup (low-sodium)
- Heavy cream: 3/4 cup
- Cream cheese: 2 ounces, softened (optional for extra thickness)
- Parmesan cheese: 1/3 cup, freshly grated
- Shirataki noodles or zucchini noodles (zoodles): About 12–16 ounces
- Lemon: 1, for finishing (zest/juice to taste)
- Fresh parsley or green onions: For garnish
- Salt and black pepper: To taste
- Optional heat: Cayenne or red pepper flakes
Step-by-Step Instructions
- Prep the noodles: If using shirataki, drain, rinse well, and dry-sauté in a nonstick pan for 2–3 minutes to remove excess moisture. If using zoodles, salt lightly and let them sit for 10 minutes, then pat dry. Set aside.
- Season the chicken: Pat dry.
Toss with 1–2 tablespoons of Cajun seasoning, a pinch of salt, and a crack of black pepper. Coat evenly.
- Sear the chicken: Heat 1 tablespoon oil and 1 tablespoon butter in a large skillet over medium-high heat. Add chicken in a single layer and sear 3–4 minutes per side until cooked through.
Remove to a plate.
- Sauté the veggies: In the same pan, add remaining oil and butter. Add bell peppers and red onion with a pinch of salt. Cook 4–5 minutes until tender-crisp.
Add garlic and cook 30 seconds until fragrant.
- Build the sauce: Reduce heat to medium. Stir in chicken broth, scraping up browned bits. Add heavy cream and remaining Cajun seasoning (start with 1 teaspoon; adjust to taste).
Simmer 3–4 minutes to thicken slightly.
- Thicken and enrich: Whisk in cream cheese, if using, until smooth. Stir in Parmesan until melted. Taste and adjust salt, pepper, and cayenne if you want more heat.
- Combine: Return chicken and any juices to the pan.
Add noodles and toss until coated and heated through, 1–2 minutes. Avoid overcooking zoodles to keep them from getting soggy.
- Finish: Add a squeeze of lemon juice and a little zest for brightness. Garnish with parsley or green onions.
Serve hot.
Keeping It Fresh
- Storage: Cool completely. Refrigerate in an airtight container for up to 4 days.
- Reheat: Warm gently in a skillet over low to medium heat with a splash of broth or cream until silky again.
- Make-ahead tips: Cook chicken and sauce ahead, store separately from noodles. Reheat and add noodles right before serving for best texture.
- Freezer note: The creamy sauce can separate when frozen.
If you must freeze, skip the noodles, freeze chicken and sauce up to 2 months, and add fresh noodles after reheating.
Why This is Good for You
- Lower in carbs: Swapping pasta for shirataki or zucchini helps keep blood sugar steadier and supports keto or low-carb goals.
- Protein-rich: Chicken provides essential amino acids to keep you full and support muscle maintenance.
- Healthy fats: Cream, cheese, and olive oil boost satiety and flavor, helping you feel satisfied with smaller portions.
- Veggie boost: Bell peppers and onions add fiber, vitamin C, and color without piling on carbs.
Common Mistakes to Avoid
- Skipping the noodle prep: Shirataki must be rinsed and dry-cooked; zoodles need to be dried. This prevents a watery sauce.
- Overcooking the chicken: Thin strips cook fast. Pull them once they’re just done to keep them tender.
- Boiling the cream hard: A gentle simmer thickens the sauce without breaking it.
- Using too much salt early: Cajun seasoning and Parmesan are salty.
Taste before adding more.
- Forgetting acidity: A little lemon at the end brightens the rich sauce and balances the spice.
Alternatives
- Protein swaps: Use shrimp, andouille sausage, or chicken thighs. For shrimp, cook 1–2 minutes per side and add back at the end.
- Dairy-free option: Use full-fat coconut milk and a dairy-free Parmesan-style cheese. Flavor profile changes slightly but stays delicious.
- Pasta options: Palmini (hearts of palm) noodles are a great low-carb choice with a firmer bite.
- Veggie additions: Mushrooms, spinach, or cherry tomatoes work well.
Add spinach at the end to wilt.
- Milder spice: Use half the Cajun seasoning and skip extra cayenne. Add smoked paprika for flavor without heat.
FAQ
Can I use store-bought Cajun seasoning?
Yes. Just check the label for added sugar or starch.
Start with less, then adjust to taste, since blends can vary in saltiness and heat.
What’s the best low-carb noodle for this?
Shirataki noodles give the closest “pasta” feel if prepped correctly. Zoodles are light and fresh but can soften quickly. Palmini noodles offer a firmer bite and are very low in carbs.
How can I make the sauce thicker without flour?
Simmer to reduce, then add a small amount of cream cheese and Parmesan.
They melt into a silky, thick sauce without starch.
Is this recipe spicy?
It’s medium-spicy by default. For less heat, reduce the Cajun seasoning and skip cayenne. For more, add extra cayenne or red pepper flakes.
Can I meal prep this?
Yes.
Store the sauce and chicken together and keep the noodles separate. Reheat the sauce gently, then toss in freshly prepped noodles for the best texture.
Wrapping Up
Keto Cajun Chicken Pasta delivers comfort and spice with a creamy, low-carb twist. It’s flexible, fast, and tastes like a restaurant favorite made at home.
With the right noodle prep and a few simple steps, you’ll have a rich, satisfying dinner that fits your goals and your schedule. Enjoy it tonight, and count on even better leftovers tomorrow.
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