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Chicken Fajita Casserole Recipe being served for dinner in a white dish.

Chicken Fajita Casserole

This easy Chicken Fajita Casserole is a great weeknight family dinner recipe! Seasoned Chicken Breasts are cooked with cheese, onions and peppers for an authentic Tex-Mex experience. It's even Keto friendly! 
Course Main Course
Cuisine Mexican
Keyword casserole, chicken, texmex
Prep Time 10 minutes
Cook Time 35 minutes
Servings 4 people
Calories 203 kcal


  • 2 teaspoons ground cumin
  • 2 teaspoons paprika
  • 1 teaspoon chili powder
  • 1 teaspoon garlic powder
  • 1 teaspoon dried oregano
  • ½ teaspoon salt
  • ½ teaspoon onion powder
  • ½ teaspoon red pepper flakes
  • ¼ teaspoon ground pepper
  • 1.5 pounds chicken breast cut into bite-size pieces
  • The juice of one lime
  • ½ tablespoon vegetable oil
  • 1 red bell pepper sliced into thin strips
  • 1 yellow bell pepper sliced into thin strips
  • 1 green bell pepper sliced into thin strips
  • 1 onion sliced into thin strips
  • 1 cup shredded Monterrey jack cheese
  • Flour tortillas for serving


  1. Preheat the oven to 375 degrees and grease a baking dish with nonstick cooking spray.
  2. Combine the cumin, paprika, chili powder, garlic powder, oregano, salt, onion powder, red pepper flakes, and pepper in a small bowl.
    combining spices in bowl for chicken fajita casserole.
  3. Layer the chicken in the bottom of the baking dish. Add the lime juice, vegetable oil, and half the seasoning mixture. Toss to coat the chicken.
    Layer Fajita Chicken in dish and add seasonings and lime juice.
  4. Top the chicken with the peppers and onions. Sprinkle the remaining seasoning mixture over the top of the vegetables.
  5. Sprinkle the cheese over the top of the casserole.
    sprinkle cheese on top of chicken fajita casserole.
  6. Cover and bake in the preheated oven for 30 minutes, then remove the cover and cook an additional 5 to 10 minutes.
  7. Serve with flour tortillas, if desired.
Nutrition Facts
Chicken Fajita Casserole
Amount Per Serving
Calories 203
* Percent Daily Values are based on a 2000 calorie diet.