The Keto Chicken Fajita Skillet is a bold, colorful, and satisfying one-pan meal designed specifically for anyone following a low-carb or ketogenic lifestyle. Inspired by classic Mexican-style fajitas, this dish delivers all the flavors you love—tender seasoned chicken, sautéed bell peppers, onions, and warm spices—without the carb-heavy tortillas or sugary seasonings that can break ketosis.
Traditional fajitas are often served with flour tortillas, rice, or beans, making them unsuitable for keto diets. This skillet version removes those elements while keeping the heart of the dish intact. By focusing on high-quality protein, low-carb vegetables, and healthy fats, this recipe offers a balanced, filling meal that supports ketosis while still feeling indulgent.
One of the greatest advantages of this recipe is its simplicity. Everything cooks in a single skillet, minimizing cleanup and maximizing flavor. It’s perfect for busy weeknights, meal prep, or even entertaining guests who prefer gluten-free or low-carb meals. The sizzling presentation, vibrant colors, and aromatic spices make it feel restaurant-quality while remaining incredibly easy to prepare.
Whether you’re new to keto or a seasoned low-carb eater, this Keto Chicken Fajita Skillet is a reliable, delicious option that proves healthy eating doesn’t have to be boring. It’s customizable, family-friendly, and guaranteed to become a regular in your meal rotation.
Ingredients
Equipment
Method
- Slice the chicken into thin, even strips. Pat dry with paper towels to remove excess moisture, which helps achieve better browning.
- In a mixing bowl, combine chili powder, cumin, paprika, onion powder, garlic powder, oregano, salt, and black pepper. Toss the chicken strips with olive oil and seasoning until evenly coated.
- Place a large skillet over medium-high heat and add a small amount of oil. Allow the pan to heat thoroughly.
- Add the seasoned chicken to the skillet in a single layer. Cook for 5–7 minutes, turning occasionally, until the chicken is fully cooked and lightly browned. Remove from the skillet and set aside.
- In the same skillet, add a little more oil if needed. Add sliced onions and bell peppers. Sauté for 4–6 minutes until softened but still slightly crisp. Add minced garlic and cook for an additional 30 seconds.
- Return the cooked chicken to the skillet. Toss everything together and cook for another 2–3 minutes to allow the flavors to meld.
- Remove from heat and squeeze fresh lime juice over the dish if desired. Garnish with cilantro.
Notes
Nutritional Facts and Total Calories (per serving, approximate)
- Calories: 360
- Protein: 32g
- Fat: 22g
- Net Carbs: 6g
- Fiber: 2g
- Sugar: 3g
Keto Chicken Fajita Skillet

Ingredient Notes
Chicken
Boneless, skinless chicken breast is lean, high in protein, and cooks quickly, making it ideal for skillet meals. Chicken thighs are also an excellent option if you prefer juicier meat with a slightly higher fat content, which can be beneficial for keto diets. Always cut the chicken into uniform strips to ensure even cooking.
Olive Oil or Avocado Oil
Healthy fats are essential in keto cooking, and both olive oil and avocado oil work perfectly in this recipe. Avocado oil is especially suitable for higher heat cooking due to its high smoke point, while olive oil adds a subtle, rich flavor.
Bell Peppers
Bell peppers add sweetness, crunch, and vibrant color to the dish. While they contain some natural carbs, they are still keto-friendly when used in moderation. Red and yellow peppers are slightly sweeter, while green peppers provide a more savory contrast.
Onion
Onions add depth and aroma to fajitas. Although slightly higher in carbs than other vegetables, a small amount goes a long way in flavor. Thin slicing ensures quick cooking and even distribution.
Garlic
Fresh garlic enhances the savory profile of the dish and complements the spice blend. Minced garlic should be added carefully to prevent burning.
Chili Powder
Chili powder is the backbone of fajita seasoning. It provides warmth and mild heat without overpowering the dish. Always check labels to ensure there is no added sugar.
Ground Cumin
Cumin adds a warm, earthy flavor that is essential to fajita-style dishes. It pairs especially well with chicken and peppers.
Paprika
Paprika adds subtle sweetness and color. Smoked paprika can be used for a deeper, smoky flavor.
Onion Powder & Garlic Powder
These enhance the seasoning without adding moisture, ensuring the chicken browns properly in the skillet.
Dried Oregano
Oregano adds a mild herbal note that balances the spice blend and enhances the overall flavor.
Salt & Black Pepper
Salt brings out the natural flavors of the ingredients, while black pepper adds mild heat and depth.
Optional Toppings
Avocado adds healthy fats, sour cream adds creaminess, and shredded cheese adds richness. These toppings are optional but highly recommended for a more indulgent keto meal.
Serving Instructions
Serve the Keto Chicken Fajita Skillet hot, straight from the pan. Enjoy it on its own or pair it with keto-friendly sides such as cauliflower rice, lettuce wraps, or zucchini noodles. It can also be served over a bed of shredded lettuce for a fajita-style salad. Add avocado slices, sour cream, or shredded cheese just before serving for extra richness.
Tips
- Slice chicken evenly for uniform cooking
- Use a hot skillet to achieve good browning
- Avoid overcrowding the pan
- Adjust spice levels to taste
- Add a splash of lime juice for freshness
Storage Information
- Refrigerator: Store leftovers in an airtight container for up to 4 days
- Freezer: Freeze cooked fajita mixture for up to 2 months
- Reheating: Reheat in a skillet over medium heat or in the microwave
Frequently Asked Questions (FAQs)
1. Is this Keto Chicken Fajita Skillet truly keto-friendly?
Yes. It uses low-carb vegetables, high-protein chicken, and healthy fats, keeping net carbs low.
2. Can I use chicken thighs instead of chicken breasts?
Absolutely. Chicken thighs are juicier and higher in fat, making them excellent for keto.
3. Can I make this recipe dairy-free?
Yes. Simply omit cheese and sour cream or use dairy-free alternatives.
4. How can I lower the carb count further?
Reduce the amount of onions and bell peppers slightly or replace some with zucchini.
5. Can this be used for meal prep?
Yes. This recipe stores well and reheats beautifully, making it perfect for meal prep.