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–+ servings
Close up fajita casserole with avocado slices.
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5 from 65 votes

Chicken Fajita Casserole

This super simple chicken fajita casserole is going to be a family favorite weeknight dinner that everyone will love!
Prep Time10 minutes
Cook Time20 minutes
Course: Dinner Recipes
Cuisine: Mexican Inspired
Servings: 6 Servings
Calories: 364kcal
Author: Laura

Ingredients

  • 1 1/2 lbs chicken breast cubed
  • 2 bell peppers deseeded and cut into strips, use red or green peppers
  • 1 onion sliced
  • 2 Tablespoons fajita seasoning
  • 1 Tablespoon vegetable oil
  • 1 cup sour cream
  • ½ cup salsa
  • 1 ½ cups shredded cheddar cheese
  • *optional toppings chopped cilantro, chopped jalapeños, sour cream, shredded cheese, salsa or pico de gallo for serving

Instructions

  • Preheat oven to 375º
  • Combine chicken, peppers, onion, fajita seasoning, and vegetable oil in a bowl and toss to coat everything in the oil and seasoning
    Mix oil, seasoning, vegetables mixed together.
  • Pour into a 9x13-inch baking dish, or 10-inch cast iron skillet, and bake in preheated oven for 20 minutes
    Cast iron skillet with fajitas in to bake in the oven.
  • While the chicken is baking, combine sour cream and salsa
    Combine salsa and sour cream.
  • Remove chicken from oven and pour sour cream mixture over chicken
    Pour sour cream mixture over the chicken fajita mix.
  • Stir to combine
    Stir the sour cream mix into the fajita skillet.
  • Top with cheese
    Cheese sprinkled on top of the fajita casserole.
  • Place back in the oven for 10 more minutes, until cheese is melted and beginning to look toasty
    Gooey melted cheese on top of chicken, peppers, onions in a casserole.
  • Remove from oven and serve with sliced avocado, and your choice of optional toppings cilantro, chopped jalapeños, extra salsa, extra sour cream, or extra shredded cheese
    Close up fajita casserole with avocado slices.

Nutrition

Serving: 1serving | Calories: 364kcal | Carbohydrates: 8g | Protein: 32g | Fat: 22g | Saturated Fat: 10g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 5g | Trans Fat: 0.03g | Cholesterol: 123mg | Sodium: 473mg | Potassium: 656mg | Fiber: 2g | Sugar: 5g | Vitamin A: 1902IU | Vitamin C: 54mg | Calcium: 257mg | Iron: 1mg