If you’re looking for a dish that combines the bold, zesty flavors of chicken fajitas with the creamy, gooey goodness of a casserole, this Fajita Chicken Casserole is here to satisfy your cravings. Featuring tender strips of seasoned chicken, sautéed peppers and onions, and layers of melted cheese, all baked into a bubbly, comforting dish, this recipe is perfect for weeknight dinners, potlucks, or feeding a crowd. Let’s dive into how you can whip up this easy, crowd-pleasing casserole at home!
Why You’ll Love Fajita Chicken Casserole
- Cheesy & Comforting: Layers of melted cheese make this casserole irresistibly indulgent.
- Flavor-Packed: The classic fajita seasoning gives this dish a bold, zesty kick.
- Quick & Easy: Ready in under an hour with simple pantry ingredients—perfect for busy days.
- Versatile: Serve as a main dish with rice, tortillas, or chips for a complete meal.
Ingredients You’ll Need
(Serves 4–6)
For the Casserole:
- 1 lb boneless, skinless chicken breasts or thighs, cooked and shredded (or rotisserie chicken for convenience)
- 2 tablespoons vegetable oil
- 1 medium onion, sliced
- 2 bell peppers (any color), sliced
- 2 cloves garlic, minced
- 1 packet (1 oz) fajita seasoning (or homemade blend: chili powder, cumin, paprika, garlic powder, onion powder, salt, and pepper)
- 1 cup sour cream (or Greek yogurt for a lighter option)
- 1 can (10 oz) cream of chicken soup (or cream of mushroom for variety)
- 1 cup shredded cheddar cheese (divided)
- 1 cup shredded Monterey Jack cheese (divided)
- Optional: 1 cup corn kernels or black beans for added texture
For Topping:

