Introduction

Chicken Fajita Casserole with Cheese is a vibrant, hearty, and cheesy dish inspired by the classic Tex-Mex chicken fajitas. This casserole combines tender, seasoned chicken, colorful bell peppers, and onions with a creamy, cheesy sauce, all baked to perfection for a comforting meal that’s perfect for weeknights or family dinners.

Unlike traditional fajitas, this casserole is layered and baked, making it easier to serve and perfect for feeding a crowd. The melted cheese binds everything together while keeping each bite rich and flavorful. The combination of smoky spices, juicy vegetables, and gooey cheese makes this dish irresistible.

Why I Love This Recipe

I love this recipe because it captures the essence of chicken fajitas but transforms it into a convenient, baked meal. Every bite is packed with tender chicken, perfectly cooked peppers and onions, and a creamy, cheesy finish. It’s a one-pan wonder that reduces cleanup and delivers the delicious flavors of a restaurant-style fajita right at home. The aroma alone makes your kitchen feel like a fiesta!

Why It’s a Must-Try Dish

• Flavor-Packed: Smoky, zesty, and cheesy — every bite bursts with Tex-Mex flavors.
• Cheesy Goodness: Melted cheese adds richness and pulls everything together.
• Quick & Easy: A weeknight-friendly casserole that requires minimal prep.
• Family-Friendly: Loved by kids and adults alike.
• Versatile: Can be served with rice, tortillas, or as a standalone dish.

Preparation and Cooking Time

• Preparation Time: 20 minutes
• Cooking Time: 30–35 minutes
• Total Time: 50–55 minutes

Servings and Nutritional Info

• Servings: 6–8
• Calories: Approximately 400–450 kcal per serving

Course & Cuisine

• Course: Main Dish / Casserole
• Cuisine: Tex-Mex / Mexican-Inspired

Ingredients

For the Chicken & Vegetables:

• 1½ lbs (700 g) boneless, skinless chicken breasts, diced
• 1 red bell pepper, sliced thinly
• 1 green bell pepper, sliced thinly
• 1 yellow bell pepper, sliced thinly
• 1 medium onion, thinly sliced
• 2 tbsp olive oil
• 1 tsp chili powder
• 1 tsp smoked paprika
• ½ tsp cumin
• ½ tsp garlic powder
• ½ tsp onion powder
• Salt and pepper, to taste

For the Cheese Mixture:

• 1 cup sour cream
• 1 cup shredded cheddar cheese
• ½ cup shredded Monterey Jack cheese
• 1 tsp lime juice (optional)
• ½ tsp smoked paprika

For Topping:

• 1 cup shredded cheddar or Mexican blend cheese
• Fresh cilantro, chopped (optional)
• Sliced jalapeños (optional)

Cooking Directions (Overview)

1. Preheat oven and prepare baking dish.
2. Cook chicken and season with spices.
3. Sauté bell peppers and onions until tender.
4. Mix chicken, vegetables, and cheese mixture.
5. Transfer to casserole dish and top with cheese.
6. Bake until bubbly and golden.
7. Serve with optional toppings.

Step-by-Step Preparation Method

Step 1: Preheat Oven

1. Preheat oven to 375°F (190°C).
2. Grease a 9×13-inch casserole dish lightly with cooking spray or butter.

Step 2: Cook Chicken

1. Heat 1 tbsp olive oil in a skillet over medium-high heat.
2. Add diced chicken, season with chili powder, smoked paprika, cumin, garlic powder, onion powder, salt, and pepper.
3. Cook for 5–7 minutes until chicken is lightly browned but not fully cooked (it will finish in the oven).
4. Remove from heat and set aside.

Step 3: Sauté Vegetables

1. In the same skillet, heat remaining olive oil.
2. Add sliced bell peppers and onion.
3. Cook for 5–6 minutes until slightly softened but still vibrant.

Step 4: Prepare Cheese Mixture

1. In a medium bowl, combine sour cream, cheddar cheese, Monterey Jack cheese, lime juice, and smoked paprika.
2. Mix until smooth.

Step 5: Assemble Casserole

1. Combine chicken, sautéed vegetables, and cheese mixture in a large bowl.
2. Transfer mixture to prepared casserole dish and spread evenly.
3. Sprinkle 1 cup shredded cheese on top.

Step 6: Bake

1. Bake in preheated oven for 20–25 minutes until cheese is melted, bubbly, and slightly golden.
2. Remove from oven and let rest for 5 minutes.

Step 7: Serve

• Garnish with chopped cilantro and sliced jalapeños, if desired.
• Serve with warm tortillas, rice, or enjoy as is.

Recipe Tips

• Uniform Chicken Pieces: Dice chicken evenly for consistent cooking.
• Adjust Spice Level: Add cayenne pepper or hot sauce for extra heat.
• Cheese Options: Use Mexican blend for a more authentic flavor.
• Vegetable Texture: Slightly undercook peppers if you prefer a firmer bite.

Variations

• Chicken & Black Bean: Add 1 cup drained black beans for extra protein.
• Corn Addition: Mix in 1 cup of corn kernels for sweetness and texture.
• Creamy Avocado: Top with diced avocado after baking.
• Taco-Inspired: Use taco seasoning instead of individual spices.
• Garlic Lovers: Add 2 cloves minced garlic when sautéing vegetables.

Freezing & Storage

• Refrigeration: Store in an airtight container for up to 3 days.
• Freezing: Freeze uncooked assembled casserole for up to 2 months. Thaw overnight in refrigerator and bake as directed.
• Reheating: Reheat individual portions in microwave or oven until warmed through.

Special Equipment Needed

• 9×13-inch casserole dish
• Large skillet or frying pan
• Mixing bowls
• Spatula
• Knife and cutting board

FAQ

Q1: Can I use chicken thighs instead of breasts?
Yes, boneless chicken thighs work well and stay extra juicy.

Q2: Can this dish be made ahead of time?
Yes, assemble the casserole and refrigerate for up to 24 hours before baking.

Q3: Can I make it low-carb?
Yes, serve without tortillas or rice and use extra vegetables.

Q4: Can I substitute sour cream?
Greek yogurt or cream cheese can be used for a slightly tangier flavor.

Conclusion

Chicken Fajita Casserole with Cheese is a hearty, flavorful, and comforting Tex-Mex dish perfect for weeknights or special occasions. Packed with tender chicken, colorful peppers, and gooey cheese, it’s a crowd-pleaser that’s easy to assemble and bake. Serve it with tortillas, rice, or enjoy on its own for a satisfying meal that’s full of bold, festive flavors.