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Baked chicken fajita casserole in a cast iron skillet with slices of avocado, sour cream, salsa, and fresh cilantro.

Chicken Fajitas Casserole (easy and cheesy!)

This chicken fajita casserole recipe is a super delicious and EASY Mexican recipe - full of all your favorite fajita flavors, but in a cheesy casserole. Yum. Only 8 ingredients and one pan from stovetop to oven. A family favorite!!
4.62 from 414 votes
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Author Kori Butler
Prep Time 10 minutes
Cook Time 35 minutes
Total Time 45 minutes
Course chicken recipes
Cuisine Mexican
Servings 8 servings
Calories 395 kcal

Ingredients
  

  • 1 tablespoon olive oil
  • 6 (4 to 6 ounces each) boneless skinless chicken thighs or breasts (cut into bite-sized pieces)
  • 4 bell peppers (sliced; vary the colors to make it pretty!)
  • 1 small onion (sliced)
  • 1 recipe or package fajita seasoning mix (taco seasoning may also be used)
  • 1 cup sour cream
  • 4 ounces cream cheese softened
  • 2 cups cheddar cheese grated
  • optional for serving: avocado, guacamole, sour cream, and salsa.

Instructions
 

  • Preheat oven to 350 degrees F. Over medium heat, saute the chicken in olive oil until chicken is done. Remove from skillet and set aside.
    Making chicken fajita casserole and cooking the chicken in a cast iron skillet.
  • Add onions and peppers and saute until desired tenderness is reached.
    Sauteeing the onions and bell peppers for chicken fajita casserole.
  • Add chicken back to pan and stir in fajita seasoning, sour cream, and cream cheese. Mix well.
    Adding the chicken fajita casserole seasoning to the cooked chicken and peppers.
  • Sprinkle with cheese and bake in oven for 10 to 15 minutes or until cheese is melted.
    Topping the chicken fajita casserole with shredded cheddar cheese before baking.

Video

Kori's Tips

Check out my post above for more helpful hints, substitution ideas, cooking tips, and other delicious recipes.
SUBSTITUTIONS: Use pre-cooked chicken to save some time - about 5 to 6 cups is needed.
TIPS: If you don't have an ovenproof skillet just transfer everything to a greased casserole dish.
SERVING SUGGESTIONS: This is really good topped with avocado, guacamole, sour cream, or salsa. You can also serve over rice or cauliflower rice, or in flour tortillas.

Nutrition

Serving: 1cupCalories: 395kcalCarbohydrates: 9.4gProtein: 29gFat: 28gSaturated Fat: 13gPolyunsaturated Fat: 12gTrans Fat: 1gCholesterol: 162mgSodium: 439mgFiber: 1.8gSugar: 4g
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