Description
This Fajita Chicken Casserole brings all the bold, smoky flavors of chicken fajitas into an easy, baked one-pan dish. Loaded with seasoned chicken, colorful bell peppers, onions, and melty cheese, this low-carb casserole is a weeknight winner your whole family will love!
Ingredients
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4 boneless, skinless chicken breasts, cut into bite-sized pieces
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1 packet (1 oz) fajita seasoning mix
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1 tablespoon olive oil
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1 red bell pepper, thinly sliced
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1 green bell pepper, thinly sliced
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1 yellow bell pepper, thinly sliced
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1 medium onion, thinly sliced
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1 cup shredded cheddar cheese (or Mexican blend)
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1/2 cup shredded Monterey Jack cheese
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Optional toppings: chopped cilantro, sour cream, avocado slices, lime wedges
Instructions
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Preheat Oven:
Preheat your oven to 375°F (190°C). Lightly grease a 9×13-inch baking dish. -
Season the Chicken:
In a bowl, toss the chicken pieces with olive oil and fajita seasoning until evenly coated. -
Assemble the Casserole:
In the baking dish, spread seasoned chicken evenly. Top with sliced bell peppers and onions. -
Bake:
Cover with foil and bake for 25 minutes. Remove foil, sprinkle cheeses evenly on top, and return to oven uncovered for another 10–15 minutes, or until chicken is fully cooked and cheese is melted and bubbly. -
Serve:
Garnish with cilantro and your favorite fajita toppings. Serve as-is or with tortillas, rice, or a fresh side salad.
Notes
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Swap chicken for ground beef or turkey for variation.
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Add jalapeños for a spicier kick.
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Great as leftovers—use in wraps or quesadillas the next day!
