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Fajita Chicken Casserole Recipe

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4.2 from 53 reviews

This Fajita Chicken Casserole is a vibrant and flavorful one-dish meal that combines juicy chicken breasts with colorful bell peppers, onions, and a blend of aromatic fajita spices. Topped with melted mozzarella cheese and fresh cilantro, this easy-to-make casserole bakes to perfection in under 40 minutes, delivering a delicious Tex-Mex inspired dinner that’s both comforting and satisfying.

Ingredients

Chicken and Vegetables

  • 4 small chicken breasts (skinless, boneless)
  • 1 red bell pepper (seeded and cut into strips)
  • 1 green bell pepper (seeded and cut into strips)
  • 1 yellow onion (finely chopped)
  • 1 tbsp olive oil

Seasoning

  • 1 tsp cumin powder
  • 1 1/2 tsp chili powder
  • 2 tsp garlic powder
  • 1 tbsp paprika
  • 1/2 tsp salt
  • 1/4 tsp black pepper

Other

  • 1 cup mozzarella (shredded)
  • Fresh cilantro (chopped, for garnish)

Instructions

  1. Preheat Oven and Prepare Dish: Preheat your oven to 400°F (200°C). Lightly spray a baking dish with oil to prevent sticking.
  2. Make Fajita Seasoning: In a small bowl, combine cumin powder, chili powder, garlic powder, paprika, salt, and black pepper. Use most of this seasoning mixture to evenly coat the chicken breasts, reserving a small portion for the vegetables.
  3. Assemble the Casserole: Place the seasoned chicken breasts in the prepared baking dish. Drizzle the olive oil over the chicken. Arrange the sliced red and green bell peppers and chopped onions on top of and around the chicken. Sprinkle the remaining fajita seasoning over the vegetables for an extra burst of flavor.
  4. Add Cheese Topping: Generously sprinkle the shredded mozzarella cheese over the entire dish, covering the chicken and vegetables.
  5. Bake the Casserole: Place the baking dish in the preheated oven and bake for 25 to 30 minutes or until the chicken is thoroughly cooked through. Cooking time may vary depending on the thickness of the chicken breasts.
  6. Broil for a Crispy Top: Once cooked, switch your oven to broil and broil the casserole for 2 minutes to brown and crisp the cheese on top.
  7. Garnish and Serve: Remove from the oven and sprinkle chopped fresh cilantro over the top before serving. Enjoy your flavorful fajita chicken casserole!

Notes

  • Use a meat thermometer to ensure chicken reaches an internal temperature of 165°F (74°C) for safety.
  • If you prefer a spicier dish, add a pinch of cayenne pepper to the seasoning blend.
  • Serve with warm tortillas or over rice for a complete meal.
  • Leftovers can be refrigerated for up to 3 days and reheated in the oven or microwave.
  • For a dairy-free option, omit the mozzarella or use a dairy-free cheese alternative.