Chicken Fajita Casserole

This Chicken Fajita Casserole is a simple yet satisfying dish that brings the vibrant flavors of a classic fajita to your dinner table with minimal effort. Seasoned chicken breasts or thighs are baked with fresh bell peppers and onions, then topped with melted cheddar cheese for a comforting, cheesy finish.

Ideal for busy weeknights or casual family meals, this casserole delivers a delicious Tex-Mex twist that’s both easy to prepare and packed with flavor.

Chicken Fajita Casserole

Ingredients

1 pound boneless, skinless chicken breasts or thighs

2 teaspoons taco seasoning

1 large onion, sliced

2 bell peppers, sliced

1 cup shredded cheddar cheese

Instructions

Preheat the oven to 350°F (180°C).

Sprinkle the chicken with taco seasoning and arrange it in a large baking dish. Top with sliced onions and bell peppers, then sprinkle shredded cheddar cheese over everything.

Bake in the preheated oven until the cheese has melted and the chicken is thoroughly cooked, approximately 25 to 35 minutes.

Notes:

Chicken Choices: You can use either boneless, skinless chicken breasts or thighs for this recipe. Thighs will give you a juicier result, while breasts are a bit leaner. Adjust cooking times slightly if using thighs, as they might take a bit longer.

Seasoning Variations: Feel free to adjust the taco seasoning to your taste. For a spicier kick, use a spicy taco seasoning or add a pinch of cayenne pepper.

Vegetable Add-Ins: This recipe is versatile—consider adding other vegetables like sliced mushrooms, diced tomatoes, or corn for extra flavor and nutrition.

Cheese Alternatives: While shredded cheddar cheese is used here, you can substitute it with other cheeses like Monterey Jack, Colby, or a Mexican blend for different flavor profiles.

Marinating Chicken: For added flavor, you can marinate the chicken in taco seasoning and a bit of olive oil for 30 minutes to an hour before baking.

Preventing Dryness: Ensure the chicken is cooked through but not overdone to avoid dryness. If needed, cover the baking dish with foil during the first part of baking and uncover for the last few minutes to allow the cheese to brown.

Serving Suggestions: This casserole pairs well with a side of rice, beans, or a fresh salad. It also goes great with tortilla chips or warm tortillas for a more complete Tex-Mex meal.

Storage: Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat in the oven or microwave until warmed through.

Freezing: You can freeze this casserole before baking. Assemble it, cover tightly with foil, and freeze for up to 2 months. When ready to cook, bake from frozen, adding extra time if needed.

Customizing Toppings: After baking, consider garnishing with fresh cilantro, lime wedges, or sliced jalapenos for an extra burst of flavor.

Nutrition Information:

YIELDS 4 | SERVING SIZE: 1

Calories: ~320 | Protein: ~29 g | Carbohydrates: ~13 g | Fiber: ~2 g | Sugars: ~6 g | Fat: ~16 g | Saturated Fat: ~7 g | Trans Fat: ~0 g | Cholesterol: ~95 mg | Sodium: ~680 mg

Frequently Asked Questions:

Can I use chicken with skin for this recipe?

While you can use chicken with skin, it’s recommended to use boneless, skinless chicken breasts or thighs for this recipe to keep it lighter and to avoid excess fat.

If using skin-on chicken, you might need to adjust cooking times and remove the skin before serving.

Can I substitute the cheddar cheese with another type of cheese?

Yes, you can substitute cheddar cheese with other types like Monterey Jack, Colby, or a Mexican cheese blend.

Each will provide a slightly different flavor and texture.

How can I make this casserole spicier?

To add more spice, use a spicy taco seasoning, or add chopped jalapeños or red pepper flakes.

You can also sprinkle some hot sauce over the top before baking.

Can I add other vegetables to the casserole?

Absolutely! Feel free to add other vegetables such as mushrooms, zucchini, or corn. Just chop them into similar sizes to ensure even cooking.

How do I ensure the chicken stays moist?

To keep the chicken moist, avoid overcooking it.

Bake until the chicken reaches an internal temperature of 165°F (74°C).

Cover the dish with foil for part of the cooking time if needed to prevent it from drying out.

Can I make this casserole ahead of time?

Yes, you can prepare the casserole a day in advance.

Assemble the dish, cover it tightly with plastic wrap or foil, and refrigerate.

Bake it the next day, adding a few extra minutes to the cooking time if needed.

What should I serve with this casserole?

This casserole pairs well with sides such as rice, beans, or a fresh salad.

It’s also great with warm tortillas or tortilla chips for a complete meal.

Can I freeze this casserole?

Yes, you can freeze the casserole.

Assemble it, cover it tightly with foil or plastic wrap, and freeze for up to 2 months.

Bake from frozen, adding extra cooking time if needed.

How do I store leftovers?

Store leftover casserole in an airtight container in the refrigerator for up to 3 days.

Reheat in the oven or microwave until warmed through.

What if I don’t have taco seasoning?

If you don’t have taco seasoning, you can make a simple mix using chili powder, cumin, garlic powder, paprika, and a pinch of salt.

Adjust the amounts to taste, or use a pre-made seasoning blend if available.