Low-Carb Chicken Fajita Bowl with Cauliflower Rice (High-Protein, Keto)

This Chicken Fajita Bowl with Cauliflower Rice delivers all the bold, smoky flavors of classic sizzled fajitas in a low-carb, keto-friendly format. By searing thinly sliced chicken breast over high heat and sautéing crisp bell peppers and onions, you get a quick, satisfying dinner that packs 42 grams of protein per serving while keeping net carbs exceptionally low.

Prep Time 15 mins

Cook Time 15 mins

Servings 4 bowls

Net Carbs 9g per bowl

Why This Recipe Works

• Moisture Control for Cauliflower Rice: Sautéing cauliflower rice in a dry pan or with minimal oil allows moisture to evaporate quickly, avoiding the soggy texture that often turns people away from vegetable rice substitutes.
• High-Heat Searing: Cooking sliced chicken breast rapidly in a preheated cast-iron skillet creates a deeply browned crust without overcooking the meat inside.
• Balanced Acidity and Healthy Fats: Fresh lime juice cuts through the rich chili spices, while avocado and sour cream add necessary fat to keep you full for hours on a keto or low-carb regimen.
• Streamlined Prep: Using a custom blend of standard pantry spices avoids hidden sugars and starch fillers commonly found in pre-packaged store-bought fajita seasoning packets.

If you enjoy high-protein, skillet-cooked meals like our High-Protein Chili Lime Chicken Bowl, this recipe utilizes a similar fast-searing technique to maximize flavor while keeping cleanup simple.

Ingredients

Fajita Chicken & Vegetables

• 1.5 lbs (24 oz) boneless, skinless chicken breasts, sliced into thin strips
• 1 medium red bell pepper, sliced into strips
• 1 medium green bell pepper, sliced into strips
• 1 medium yellow onion, sliced into strips
• 2 tbsp olive oil or avocado oil, divided
• 1 tbsp fresh lime juice

Homemade Fajita Seasoning

• 1 tsp chili powder
• 1 tsp ground cumin
• 1/2 tsp garlic powder
• 1/2 tsp onion powder
• 1/2 tsp smoked paprika
• 1/2 tsp dried oregano
• 3/4 tsp salt
• 1/4 tsp black pepper

Cauliflower Rice Base & Toppings

• 4 cups fresh or frozen riced cauliflower (if frozen, thawed and thoroughly squeezed dry)
• 1 tbsp olive oil or butter
• 1/4 cup chopped fresh cilantro
• 1/2 cup shredded Mexican blend cheese or cheddar
• 1 medium avocado, sliced or diced
• 1/4 cup sour cream or plain Greek yogurt

Equipment

• Large cast-iron skillet or heavy-bottomed frying pan
• Chef's knife and cutting board
• Mixing bowls
• Clean kitchen towel or cheesecloth (if using thawed frozen riced cauliflower)

Step-by-Step Instructions

1. Season the Chicken: In a small bowl, combine the chili powder, cumin, garlic powder, onion powder, smoked paprika, dried oregano, salt, and black pepper. Place the sliced chicken in a mixing bowl, toss with 1 tablespoon of olive oil and the seasoning blend until evenly coated.
2. Sear the Chicken: Heat a large skillet over medium-high heat. Once hot, add the seasoned chicken in a single layer (cook in two batches if necessary to avoid overcrowding). Cook undisturbed for 3–4 minutes until a brown crust forms, then stir and cook for an additional 2–3 minutes until the internal temperature reaches 165°F (74°C). Transfer the cooked chicken to a plate and set aside.
3. Sauté the Vegetables: Add 1/2 tablespoon of oil to the same skillet. Add the sliced red bell pepper, green bell pepper, and yellow onion. Sauté over medium-high heat for 4–5 minutes until the vegetables are crisp-tender and lightly charred on the edges. Drizzle with 1 tablespoon of fresh lime juice, stir to deglaze the pan, then transfer the vegetables to the plate with the chicken.
4. Prepare the Cauliflower Rice: Lower heat to medium. Add the remaining 1/2 tablespoon of oil (or butter) to the pan. Add the riced cauliflower and stir frequently for 4–5 minutes until tender and hot. If using frozen cauliflower, cook an extra 2 minutes until moisture has evaporated completely. Remove from heat and fold in the chopped cilantro.
5. Assemble the Bowls: Divide the warm cilantro-cauliflower rice evenly among 4 meal prep bowls. Top each bowl with equal portions of seared chicken, sautéed peppers, and onions. Finish each bowl with 2 tablespoons of shredded cheese, sliced avocado, and a dollop of sour cream.

Cooking Tips & Troubleshooting

Pro Tips

• Don't Overcrowd the Pan: If too much chicken or pepper slices are added at once, the food steams rather than sears. Work in batches to get that signature fajita char.
• Dry Frozen Riced Cauliflower: If using frozen riced cauliflower, microwave it briefly, place it in a clean kitchen towel, and squeeze out excess water over the sink before hitting the hot pan.

Troubleshooting

• Watery Cauliflower Base: If your cauliflower rice releases liquid in the skillet, turn up the heat to high and continue stirring until all steam subsides and the pan is completely dry.
• Dry Chicken Strips: Chicken breast slices cook quickly over high heat. Remove them from the pan immediately once they reach 165°F to retain moisture.

Substitutions & Variations

• Protein Swap: You can replace chicken breast with boneless, skinless chicken thighs for extra fat, or try steak strips similar to our High-Protein Keto Garlic Butter Steak base.
• Dairy-Free/Strict Keto: Omit the cheese and sour cream or use coconut-milk yogurt and dairy-free cheese alternatives. Increase avocado to maintain fat ratios.
• Extra Vegetables: Sliced zucchini or poblano peppers integrate smoothly without adding substantial net carbs.

Storage & Meal Prep Advice

• Refrigerator Storage: Store the cooked chicken, vegetables, and cauliflower rice in airtight containers for up to 4 days. Keep cold toppings (sour cream, avocado, lime wedges) in separate small containers until serving.
• Reheating: Reheat the bowl (without avocado or sour cream) in the microwave on high for 90 to 120 seconds, or toss briefly in a hot skillet for 2–3 minutes. Add fresh toppings right before eating.
• Freezing Note: Cooked chicken and fajita vegetables freeze well for up to 1 month. Cauliflower rice can become watery upon thawing, so for best texture, freeze only the chicken and pepper mixture and prepare fresh cauliflower rice when ready to consume.

Frequently Asked Questions

Is this recipe suitable for a strict keto diet?

Yes. By replacing standard rice or black beans with seasoned cauliflower rice and using a filler-free spice blend, each bowl contains only 9 grams of net carbs (13g total carbs minus 4g fiber).

Can I use store-bought fajita seasoning packets?

You can, but check the ingredient label carefully. Commercial packets often contain added cornstarch, maltodextrin, or sugar, which increase carb counts. Homemade blends offer better flavor and strict keto compliance.

How do I stop cauliflower rice from smelling sulfurous?

Cooking cauliflower rice quickly over medium-high heat with healthy fat and finishing with fresh lime juice or cilantro significantly dampens any strong brassica aromas while enhancing freshness.

Can I make this with pre-cooked chicken?

Yes. Toss leftover rotisserie or grilled chicken with the dry seasoning blend and heat it in the skillet with the cooked peppers during the final minute of cooking.

Chicken Fajita Bowl with Cauliflower Rice

High-Protein • Keto • Low-Carb • Gluten-Free

Pin Recipe

Prep Time: 15 mins

Cook Time: 15 mins

Total Time: 30 mins

Servings: 4

Ingredients

• 1.5 lbs boneless, skinless chicken breasts, sliced into strips
• 1 medium red bell pepper, sliced
• 1 medium green bell pepper, sliced
• 1 medium yellow onion, sliced
• 2 tbsp olive oil, divided
• 1 tbsp fresh lime juice
• 1 tsp chili powder
• 1 tsp ground cumin
• 1/2 tsp garlic powder
• 1/2 tsp onion powder
• 1/2 tsp smoked paprika
• 1/2 tsp dried oregano
• 3/4 tsp salt
• 1/4 tsp black pepper
• 4 cups riced cauliflower
• 1/4 cup chopped fresh cilantro
• 1/2 cup shredded Mexican blend cheese
• 1 medium avocado, sliced
• 1/4 cup sour cream

Instructions

1. Mix chili powder, cumin, garlic powder, onion powder, smoked paprika, oregano, salt, and pepper. Toss sliced chicken with 1 tbsp olive oil and spices.
2. Heat a large skillet over medium-high heat. Add chicken and cook for 5–7 minutes until browned and internal temperature reaches 165°F. Remove and set aside.
3. In the same skillet, add 1/2 tbsp oil, bell peppers, and onion. Sauté for 4–5 minutes until tender-crisp. Stir in lime juice, then remove with chicken.
4. Add remaining 1/2 tbsp oil and cauliflower rice to skillet. Sauté for 4–5 minutes until tender and dry. Stir in fresh cilantro.
5. Assemble 4 bowls with a base of cilantro cauliflower rice, topped with chicken, peppers, onion, cheese, avocado, and sour cream.

Estimated Nutrition (Per Serving / 1 Bowl)

Calories
410

Protein
42g

Total Fat
22g

Total Carbs
13g

Fiber
4g

Net Carbs
9g

Sugar
5g

Sodium
620mg

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