If you’re looking for a flavor-packed, low-carb meal that’s both easy to make and incredibly satisfying, this Keto Chicken Fajita Casserole is exactly what you need! First, tender, juicy chicken is seasoned with a bold blend of Mexican spices, bringing out that classic fajita flavor you love. Next, it’s combined with colorful bell peppers and onions, adding a delicious sweetness and crunch to every bite. But the real magic happens when everything is smothered in a rich, cheesy sauce and baked to perfection, creating a creamy, comforting, and irresistibly delicious dish. Even better, this one-pan meal is not only gluten-free and low-carb, but it’s also perfect for meal prep, making weeknight dinners effortless. healthy, and mouthwatering keto-friendly meal tonight!
Why You’ll Love This Keto Chicken Fajita Casserole:
- Low-Carb & Keto-Friendly – All the bold, savory flavors of classic fajitas without the carbs, making it perfect for a ketogenic lifestyle.
- Rich, Creamy & Cheesy – Smothered in melty cheese and a flavorful fajita-seasoned sauce, this dish is the ultimate comfort food.
- One-Pan & Easy to Make – With minimal prep and just one baking dish, this is a stress-free, mess-free meal perfect for busy nights.
- Packed with Protein & Flavor – Juicy chicken, sautéed peppers, and onions create a mouthwatering, high-protein dish that keeps you full and satisfied.
- Versatile & Customizable – Enjoy it on its own, over cauliflower rice, wrapped in low-carb tortillas, or even stuffed into a keto-friendly bell pepper for extra variety.
- Great for Meal Prep – Make a batch ahead of time and enjoy quick, delicious leftovers throughout the week!
Ingredients:
- 2 lbs chicken breasts or thighs, boneless and skinless, diced
- 1 tablespoon olive oil
- 1 onion, thinly sliced
- 2 bell peppers (red and green), thinly sliced
- 1 tablespoon chili powder
- 1 teaspoon cumin
- 1 teaspoon paprika
- 1/2 teaspoon garlic powder
- 1/2 teaspoon onion powder
- 1/4 teaspoon cayenne pepper (optional)
- Salt and pepper to taste
- 1/2 cup sour cream
- 1 cup shredded cheddar cheese
- 1/2 cup shredded mozzarella cheese
- 1/4 cup chopped cilantro (optional, for garnish)
- 1 tablespoon lime juice (optional)
Instructions:
1. Preheat the oven:
- Preheat your oven to 375°F (190°C) and grease a 9×13-inch baking dish with cooking spray or olive oil.
2. Sauté the vegetables and chicken:
- Heat olive oil in a large skillet over medium heat. Add the diced chicken and season with salt, pepper, chili powder, cumin, paprika, garlic powder, onion powder, and cayenne pepper (if using). Cook until the chicken is browned and cooked through, about 5-7 minutes.
- Add the sliced onions and bell peppers to the skillet and sauté for an additional 3-5 minutes until the vegetables are softened but still crisp.
3. Assemble the casserole:
- Transfer the cooked chicken and vegetable mixture into the prepared baking dish.
- In a small bowl, mix together the sour cream and lime juice (if using). Spread the sour cream mixture evenly over the chicken and vegetables.
4. Add the cheese:
- Sprinkle the shredded cheddar and mozzarella cheese over the top of the casserole.
5. Bake the casserole:
- Bake in the preheated oven for 20-25 minutes, or until the cheese is melted and bubbly.
6. Garnish and serve:
- Garnish with fresh chopped cilantro (optional) and serve hot. Enjoy your keto-friendly chicken fajita casserole!
Nutritional Information (Per Serving):
(Based on 6 servings)
- Calories: 380 kcal
- Total Fat: 23g
- Saturated Fat: 10g
- Carbohydrates: 8g
- Fiber: 3g
- Net Carbs: 5g
- Protein: 40g
- Sugars: 4g
Special Tip: 💡
For the best flavor, let the chicken marinate in the fajita seasoning for at least 30 minutes before assembling the casserole—this helps enhance the bold, smoky, and zesty taste in every bite! Plus, for an extra creamy texture, mix in a little cream cheese or sour cream before baking. And don’t forget—top it off with fresh cilantro, avocado slices, or a squeeze of lime for the perfect finishing touch! 🌿🥑🍋
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