Why You’ll Love Chicken Fajita Casserole Recipe
This recipe delivers all the flavor of traditional fajitas without the need to stand over a hot skillet. Everything bakes together in one dish, making cleanup simple and stress-free. The combination of juicy chicken, vibrant peppers, and perfectly melted cheese creates a hearty and satisfying meal.
It’s also incredibly versatile. You can adjust the spice level, add extra vegetables, or even turn it into a low-carb option. Whether you’re meal prepping for the week or feeding a crowd, this casserole is reliable, flavorful, and always a hit.
Ingredients
(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)
1.5 pounds boneless, skinless chicken breasts or thighs, cut into strips
3 large bell peppers (red, yellow, and green), sliced
1 large onion, thinly sliced
2 cups shredded cheese (cheddar, Monterey Jack, or pepper jack)
1 can (10 ounces) diced tomatoes with green chilies, drained
2 tablespoons olive oil
1 lime, juiced
2 to 3 tablespoons fajita seasoning
1 teaspoon chili powder
1 teaspoon ground cumin
1 teaspoon smoked paprika
1/2 teaspoon garlic powder
1/2 teaspoon onion powder
Salt and black pepper to taste
Fresh cilantro for garnish (optional)
Directions
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Preheat your oven to 400°F (200°C). Lightly grease a 9×13-inch baking dish.
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In a large bowl, combine the chicken strips with olive oil, lime juice, fajita seasoning, and all spices. Toss until evenly coated.
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Add the sliced bell peppers and onion to the bowl and mix well so everything is seasoned.
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Spread half of the chicken and vegetable mixture into the prepared baking dish.
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Sprinkle half of the diced tomatoes and half of the shredded cheese over the top.
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Repeat with the remaining chicken mixture, tomatoes, and cheese.
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Cover the dish with foil and bake for 20 minutes.
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Remove the foil and bake for an additional 10 to 15 minutes, or until the chicken is fully cooked and the cheese is melted and bubbly.
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Let the casserole rest for 5 minutes before serving. Garnish with fresh cilantro if desired.
Servings and timing
Servings: 6
Prep time: 15 minutes
Cook time: 35 minutes
Total time: 50 minutes
Variations
For a heartier version, add a layer of cooked rice at the bottom of the casserole before adding the chicken mixture.
To increase the heat, mix in sliced jalapeños or a pinch of cayenne pepper.
For a lower-carb option, skip the tomatoes and serve the casserole over cauliflower rice.
You can also stir in black beans or corn for extra texture and flavor.
Swap the chicken for sautéed mushrooms, zucchini, and black beans to make a vegetarian version.
Storage/Reheating
Store leftovers in an airtight container in the refrigerator for up to 4 days.
To freeze, place cooled portions in freezer-safe containers and store for up to 3 months. Thaw overnight in the refrigerator before reheating.
To reheat in the oven, cover with foil and warm at 350°F (175°C) for 15 to 20 minutes until heated through. Individual portions can be reheated in the microwave for 1 to 2 minutes, stirring halfway through for even heating.
FAQs
Can I use chicken thighs instead of chicken breasts?
Yes, chicken thighs work very well and often stay even juicier during baking.
Can I prepare this casserole ahead of time?
Yes, you can assemble it up to 24 hours in advance. Cover and refrigerate, then bake when ready.
How do I know when the chicken is fully cooked?
The internal temperature should reach 165°F (74°C), and the juices should run clear.
Can I use store-bought fajita seasoning?
Absolutely. Store-bought seasoning is convenient and works perfectly in this recipe.
What type of cheese melts best for this casserole?
Cheddar, Monterey Jack, or pepper jack melt beautifully and add great flavor.
Is this recipe gluten-free?
Yes, as long as your seasoning blend and canned tomatoes are certified gluten-free.
Can I add rice directly into the casserole?
Yes, but it should be fully cooked before adding to ensure proper texture.
How can I make this dish dairy-free?
Simply omit the cheese or use a dairy-free shredded cheese alternative.
What side dishes pair well with this casserole?
It pairs nicely with Mexican rice, refried beans, a simple green salad, or warm tortillas.
Can I double the recipe for a larger group?
Yes, you can double the ingredients and bake in two separate dishes or one larger roasting pan, adjusting cooking time as needed.
Conclusion
Chicken Fajita Casserole is a flavorful, satisfying dish that captures everything you love about classic fajitas in a convenient baked format. With tender seasoned chicken, colorful vegetables, and melted cheese in every bite, it’s a dependable recipe that’s perfect for weeknights, meal prep, or sharing with friends and family. Once you try it, it’s sure to become a regular part of your dinner rotation.
