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Fajita Chicken Casserole

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Fajita chicken casserole takes all the bold, savory flavors of chicken fajitas and bakes them into one cheesy, comforting dish. Packed with tender chicken, peppers, onions, and melty cheese, it’s an easy, mess-free way to enjoy a Tex-Mex favorite.

  • Author: Ella
  • Prep Time: 15 minutes
  • Cook Time: 30 minutes
  • Total Time: 45 minutes
  • Yield: 4–6 servings
  • Category: Main Dish
  • Method: Baking
  • Cuisine: Tex-Mex

Ingredients

  • 1.5 lbs boneless, skinless chicken breasts or thighs, cut into strips or chunks
  • 3 bell peppers (any color), sliced
  • 1 large onion, sliced
  • 2 tablespoons olive oil
  • 2 tablespoons fajita seasoning (store-bought or homemade)
  • Salt and pepper, to taste
  • 4 oz cream cheese, softened
  • 1/2 cup sour cream or Greek yogurt
  • 1 1/2 cups shredded Mexican cheese blend or cheddar
  • Optional toppings: chopped cilantro, diced tomatoes, sliced jalapeños, lime wedges

Instructions

  1. Preheat oven to 375°F (190°C) and lightly grease a 9×13-inch casserole dish.
  2. In a large bowl, toss chicken with olive oil, fajita seasoning, salt, and pepper until coated.
  3. Spread seasoned chicken, bell peppers, and onion evenly in the casserole dish.
  4. In a separate bowl, mix cream cheese and sour cream until smooth. Dollop or spread over the chicken and veggies.
  5. Top with shredded cheese and bake for 25–30 minutes, until chicken is cooked through and cheese is bubbly and golden.
  6. Let rest for a few minutes, then garnish with optional toppings and serve.

Notes

  • Add cooked rice or black beans before baking for a heartier dish.
  • Use rotisserie chicken for a quicker version; reduce baking time.
  • Serve over cauliflower rice or lettuce for a low-carb option.
  • Add diced green chilies or hot sauce for extra heat.
  • Freeze fully cooled leftovers in airtight containers for up to 2 months.

Nutrition

Find it online: https://elladishes.com/fajita-chicken-casserole/