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Chicken Fajita Casserole Recipe

3.8 from 47 reviews

This Chicken Fajita Casserole is a flavorful and easy-to-make dish combining tender shredded chicken with sautéed bell peppers and onions, seasoned with a zesty fajita mix. Topped with melted cheddar cheese and fresh cilantro, it’s a perfect weeknight dinner that brings the excitement of fajitas into a comforting baked casserole.

Ingredients

Scale

Protein

  • 3 cups shredded chicken

Vegetables and Aromatics

  • 1 green bell pepper, sliced
  • 1 red bell pepper, sliced
  • 1 yellow onion, sliced
  • 2 tablespoons chopped fresh cilantro

Seasonings and Condiments

  • 1 tablespoon olive oil
  • 2 tablespoons fajita seasoning mix
  • ½ teaspoon salt
  • ¼ teaspoon black pepper
  • 1 cup salsa

Dairy

  • 2 cups shredded cheddar cheese

Instructions

  1. Preheat oven: Set your oven to 375°F (190°C) to preheat while you prepare the casserole components.
  2. Sauté vegetables: Heat olive oil in a large saucepan over medium-high heat. Add the sliced green and red bell peppers, yellow onion, fajita seasoning mix, salt, and black pepper. Cook the mixture until the vegetables are softened and fragrant, about 8 minutes.
  3. Remove from heat: Once the vegetables have softened, take the pan off the heat and set aside.
  4. Assemble casserole base: In a baking dish, spread the shredded chicken evenly as the bottom layer. Pour the salsa over the chicken to add moisture and flavor.
  5. Add sautéed vegetables: Layer the cooked bell peppers and onions evenly on top of the salsa-covered chicken.
  6. Top with cheese: Generously sprinkle the shredded cheddar cheese over the vegetable layer to create a cheesy topping.
  7. Bake: Place the baking dish in the preheated oven and bake for 20 minutes, allowing the cheese to melt and the casserole to heat through.
  8. Garnish: Remove the casserole from the oven and sprinkle freshly chopped cilantro on top for a burst of fresh flavor and color.
  9. Serve: Dish out portions of the casserole while warm and enjoy the savory, cheesy chicken fajita flavors.

Notes

  • You can substitute shredded rotisserie chicken to save time.
  • For added heat, consider adding a diced jalapeño with the bell peppers.
  • This casserole can be made ahead and refrigerated; bake just before serving.
  • Use a Mexican blend cheese or Monterey Jack as an alternative to cheddar.
  • Serve with warm tortillas or over rice for a complete meal.

Keywords: Chicken Fajita Casserole, baked fajitas, easy chicken casserole, Mexican casserole, weeknight dinner, skillet fajitas baked, cheesy chicken fajitas