Fajita Chicken Casserole Recipe
Introduction
This Fajita Chicken Casserole is a simple and flavorful dish that brings the zest of fajitas to a comforting bake. With tender chicken, colorful bell peppers, and melty cheese, it’s perfect for a quick weeknight dinner.

Ingredients
- 2 cups cooked chicken, shredded or diced
- 2 bell peppers, sliced
- 1 medium onion, sliced
- 1 ½ cups shredded cheese (cheddar or Mexican blend)
Instructions
- Step 1: Preheat your oven to 375°F (190°C). In a large bowl, combine the cooked chicken, sliced bell peppers, and onion. Mix well to distribute the ingredients evenly.
- Step 2: Transfer the mixture into a baking dish and sprinkle the shredded cheese evenly on top. Bake in the preheated oven for 20-25 minutes, or until the cheese is melted and bubbly, and the casserole is heated through.
Tips & Variations
- For extra flavor, season the chicken and vegetables with fajita seasoning before mixing.
- Add sliced jalapeños if you like a bit of heat in your casserole.
- Serve with warm tortillas or over rice for a complete meal.
Storage
Store any leftovers in an airtight container in the refrigerator for up to 3 days. Reheat in the oven or microwave until warmed through. To keep the cheese melty, cover the casserole when reheating.
How to Serve
Serve this delicious recipe with your favorite sides.
FAQs
Can I use raw chicken instead of cooked chicken?
It’s best to use cooked chicken to ensure the casserole cooks evenly. If using raw chicken, cook it thoroughly before combining with the other ingredients.
What type of cheese works best for this casserole?
Cheddar or a Mexican cheese blend melts well and adds great flavor, but feel free to use mozzarella or Monterey Jack for a milder taste.
PrintFajita Chicken Casserole Recipe
This Fajita Chicken Casserole is a vibrant and hearty dish combining tender chicken, colorful bell peppers, onions, and melted cheese, all baked together for a flavorful, comforting meal that bursts with classic fajita spices.
- Prep Time: 15 minutes
- Cook Time: 35 minutes
- Total Time: 50 minutes
- Yield: 6 servings 1x
- Category: Casserole
- Method: Baking
- Cuisine: Mexican
Ingredients
Chicken
- 2 pounds boneless, skinless chicken breasts, cut into thin strips
Vegetables
- 1 large red bell pepper, sliced
- 1 large green bell pepper, sliced
- 1 large yellow bell pepper, sliced
- 1 large onion, thinly sliced
Cheese
- 1 ½ cups shredded cheddar cheese
- 1 cup shredded Monterey Jack cheese
Spices and Extras
- 2 tablespoons olive oil
- 1 tablespoon chili powder
- 1 teaspoon ground cumin
- 1 teaspoon smoked paprika
- ½ teaspoon garlic powder
- ½ teaspoon onion powder
- Salt and black pepper to taste
Instructions
- Prepare the Chicken and Vegetables: In a large bowl, mix the sliced chicken strips with olive oil, chili powder, ground cumin, smoked paprika, garlic powder, onion powder, salt, and black pepper. Toss until the chicken is thoroughly coated in the spices. Add the sliced bell peppers and onion to the bowl and mix well to combine all the ingredients.
- Assemble the Casserole: Preheat your oven to 375°F (190°C). Transfer the chicken and vegetable mixture into a greased 9×13-inch baking dish, spreading it out evenly.
- Add Cheese Topping: Sprinkle the shredded cheddar and Monterey Jack cheeses evenly over the top of the chicken and vegetables.
- Bake the Casserole: Place the baking dish in the preheated oven and bake for 30 to 35 minutes, or until the chicken is cooked through (internal temperature of 165°F) and the cheese is melted and lightly golden.
- Serve: Remove from oven and let the casserole rest for 5 minutes before serving. This dish pairs wonderfully with warm tortillas, rice, or a fresh green salad.
Notes
- You can substitute chicken breasts with boneless skinless thighs for a juicier casserole.
- Adjust the amount of chili powder to control the heat level to your preference.
- For a dairy-free option, omit the cheese or substitute with vegan cheese alternatives.
- Leftovers can be stored in the refrigerator for up to 3 days and reheated in the oven or microwave.
- Add a squeeze of fresh lime juice and chopped cilantro on top before serving for extra zest and freshness.
Keywords: fajita chicken casserole, baked chicken fajitas, cheesy chicken casserole, Mexican casserole recipe, easy chicken dinner

