There’s something irresistible about a spicy, creamy Cajun chicken pasta — even if the restaurant versions are often heavy on calories and rich ingredients. If you’ve ever tasted the famous Chili’s Cajun Chicken Pasta, you know what I mean: comforting, bold, and indulgent. This version recreates that spirit while keeping it Whole30 and Paleo friendly. It swaps traditional pasta, butter, and dairy for lighter, compliant alternatives without sacrificing the deep, savory Cajun flavors.
This recipe focuses on a creamy, spice-forward sauce built from wholesome ingredients. Instead of conventional cream and pasta, spiralized zucchini provides the “noodle” base, and arrowroot helps thicken the sauce. The result is a satisfying plate that showcases bright Cajun seasonings — cayenne, black pepper, crushed red pepper, thyme, rosemary, and oregano — layered with garlic, lemon, and a savory chicken broth base. The chicken is lightly dredged, seared, and finished in the sauce so it stays juicy and well-seasoned.
If you love bold, spicy dishes, this Whole30/Paleo Cajun Chicken Pasta is an excellent, healthier alternative to the restaurant classic. It’s ideal for weeknight dinners or meal prep, and it serves about four people. Prepare the zucchini noodles just before serving to avoid excess water, and adjust the cayenne to match your heat preference.
- 1/4–1/2 tsp cayenne pepper (adjust to your heat preference)
- 1 tsp freshly ground black pepper
- 1/2 tsp salt
- 1/2 tsp crushed red pepper flakes
- 1/2 tsp dried thyme
- 1/2 tsp dried rosemary
- 1/8 tsp dried oregano
- 4 boneless, skinless chicken breasts
- 1/4–1/2 cup arrowroot starch (for dredging)
- 2–4 tbsp olive oil (for searing)
- 2 cloves garlic, minced
- 1 tbsp ghee
- 2 tsp fresh lemon juice
- 1 cup low-sodium chicken broth
- 2–3 medium zucchinis, spiralized (use a wider blade for best texture)
- 1 red bell pepper, cut into large dice
- 1/4 medium onion, thinly sliced
- 1 cup sliced mushrooms
- 2 tbsp olive oil (for vegetables)
- Additional salt and pepper, to taste
- In a small bowl, combine the cayenne, black pepper, salt, crushed red pepper, thyme, rosemary, and oregano. Set the spice blend aside.
- Prepare the chicken: place each chicken breast on a cutting board and slice horizontally to create thinner cutlets, holding the breast flat as you slice. Repeat with all breasts.
- Lightly season both sides of each chicken cutlet with salt and pepper.
- Spread the arrowroot on a plate or shallow bowl and dredge each cutlet until evenly coated. Set coated pieces aside on a clean plate.
- Heat 2 tablespoons olive oil in a nonstick skillet over medium-high heat. Sear the chicken until golden on both sides, about 3–4 minutes per side. Work in batches if needed and add more oil if the pan runs dry. The chicken does not need to be fully cooked through — it will finish in the sauce.
- Lower the heat to medium-low and add the tablespoon of ghee, allowing it to melt.
- Add the minced garlic and sauté briefly, about 1–2 minutes, until fragrant. Avoid letting the garlic brown.
- Pour in the chicken broth and lemon juice, then stir in the reserved spice blend. Return the seared chicken to the pan, nestling the cutlets into the sauce. Reduce to a gentle simmer and cook until the chicken is cooked through and the sauce thickens slightly, about 8–12 minutes.
- While the chicken simmers, heat a separate skillet over medium-high heat. Add 2 tablespoons olive oil and sauté the red bell pepper and onion for about 4 minutes. Add the mushrooms and continue to cook another 4 minutes, seasoning with salt and pepper. Finally, add the spiralized zucchini and sauté just until tender, about 1–2 minutes — avoid overcooking to prevent excess moisture.
- To serve, divide the zucchini noodles and vegetables among plates and spoon the chicken and the Cajun sauce over the top. Garnish with additional black pepper or fresh herbs if desired. Serve immediately and enjoy.