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Chicken Fajitas Casserole Recipe

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4.1 from 75 reviews

This Chicken Fajitas Casserole is a quick and flavorful one-dish meal combining tender, seasoned chicken breasts with sautéed bell peppers and onions, all topped with melted cheese and baked to perfection. Perfect for a weeknight dinner, this dish captures the vibrant flavors of classic fajitas in a comforting casserole format.

Ingredients

Chicken

  • 4 chicken breasts (pounded flat and even)
  • 1 teaspoon oil
  • 2 tablespoons fajita seasoning

Vegetables

  • 3 bell peppers (deseeded and thinly sliced)
  • 1 onion (sliced)

Cheese

  • 2 cups (166g) shredded cheese

Instructions

  1. Preheat the Oven: Set your oven to 350°F (176°C or gas mark 4) to prepare it for baking the casserole.
  2. Season the Chicken: Mix the pounded chicken breasts with 1 teaspoon of oil and 2 tablespoons of fajita seasoning to ensure the meat is well-coated with flavor.
  3. Assemble the Casserole: Place the seasoned chicken breasts evenly at the bottom of a casserole dish. Then, layer the sliced onions and bell peppers over the chicken, followed by a generous topping of shredded cheese.
  4. Bake the Casserole: Put the casserole dish in the oven and bake for 25 to 30 minutes, or until the chicken is fully cooked and reaches an internal temperature of 165°F (74°C). The cheese should be melted and slightly golden.
  5. Serve: Remove from the oven and serve immediately with your favorite fajita toppings such as sour cream, guacamole, or salsa for an extra burst of flavor.

Notes

  • For best results, pound the chicken breasts to an even thickness to ensure uniform cooking.
  • You can substitute the fajita seasoning with a homemade blend of chili powder, cumin, paprika, garlic powder, and onion powder if preferred.
  • Feel free to add additional vegetables such as sliced jalapeños or corn for extra flavor and texture.
  • Use a mix of cheeses like cheddar and Monterey Jack for a richer taste.
  • Check the internal temperature of the chicken with a meat thermometer to guarantee it is safely cooked through.