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Chicken Fajita Casserole

A warm, flavorful casserole featuring tender chicken, colorful bell peppers, and gooey cheese, perfect for family dinners or gatherings.
Prep Time 15 minutes
Cook Time 35 minutes
Total Time 50 minutes
Course Casserole, Main Course
Cuisine Comfort Food, Mexican
Servings 6 servings
Calories 350 kcal

Ingredients
  

For the casserole

  • 1.5 pounds boneless, skinless chicken breasts or thighs, cut into strips
  • 3 large bell peppers (red, yellow, green), sliced
  • 1 large onion, sliced
  • 2 cups shredded cheese (cheddar, Monterey Jack, or pepper jack) Choose your favorite type of cheese.
  • 10 oz diced tomatoes with green chilies, drained
  • 2 tbsp olive oil
  • 1 large lime, juiced
  • Fresh cilantro to taste chopped, for garnish

For the spices

  • 2 tsp chili powder
  • 1 tsp smoked paprika
  • 1 tsp ground cumin
  • 1 tsp garlic powder
  • 1 tsp onion powder
  • 0.5 tsp dried oregano
  • 0.25 tsp cayenne pepper (adjust to taste)

Instructions
 

Preparation

  • Preheat your oven to 400°F (200°C) and lightly grease a 9x13 baking dish.

Marinate the chicken

  • In a large mixing bowl, combine the chicken strips with olive oil and lime juice.
  • Add the chili powder, smoked paprika, ground cumin, garlic powder, onion powder, dried oregano, cayenne pepper, salt, and black pepper.
  • Mix thoroughly and let marinate for about 10–15 minutes.

Combine with vegetables

  • Add the sliced bell peppers and onion to the marinated chicken and mix well.

Layer the casserole

  • Layer half of the chicken and veggie mixture into the greased baking dish.
  • Top with half of the diced tomatoes and 1 cup of cheese.
  • Repeat with the remaining chicken and veggies, tomatoes, and cheese.

Bake

  • Cover the dish with aluminum foil and bake for 20 minutes.
  • Remove the foil and bake for an additional 10–15 minutes until cheese is melted and bubbly.

Serve

  • Garnish with fresh cilantro and serve warm.

Notes

For best results, marinate the chicken properly and avoid overcooking the casserole.
Keyword Casserole Recipe, Chicken Fajita Casserole, easy dinner, Family Meal, one-pot meal