Description

This Sheet Pan Chicken Fajitas recipe offers a quick and easy way to enjoy vibrant, flavorful fajitas with minimal cleanup. Marinated strips of chicken breast, colorful bell peppers, onions, and garlic are baked together on a single pan, then finished with fresh lime juice and cilantro. Perfect for a weeknight dinner, these fajitas serve 6 and can be customized with your favorite toppings and tortillas.

Ingredients

Scale

Chicken and Vegetables

3 tablespoons olive oil
1 (1.5oz) package fajita seasoning (or use homemade recipe in notes below)
1½ pounds chicken breast, cut into 1/2-inch strips
4 large bell peppers, sliced (any color mix: green, red, orange, yellow)
2 small onions, cut into thin wedges (red, yellow or mixed)
2 cloves garlic, finely minced

Finishing Ingredients

2 tablespoons fresh lime juice (or to taste)
2 tablespoons chopped fresh cilantro (or to taste)

To Serve

Flour tortillas
Favorite toppings (such as avocado, sour cream, salsa, extra lime wedges)

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Instructions

Season: Place the chicken strips, sliced bell peppers, onion wedges, olive oil, fajita seasoning, and minced garlic into a very large Ziploc bag. Seal the bag tightly and shake well to evenly coat all ingredients with the seasoning. Refrigerate and marinate for 30 minutes to allow flavors to meld.
Bake: Preheat your oven to 400°F (200°C). Line a rimmed baking sheet with aluminum foil for easy cleanup, then spread the marinated chicken and vegetable mixture evenly on the pan. Bake in the oven for 15-20 minutes, stirring once halfway through to ensure even cooking and softness. Optionally, switch to the broiler for 2-3 minutes at the end to char the fajitas slightly for extra flavor.
Finish: Remove the pan from the oven and transfer the fajita mixture to a serving dish. Toss the chicken and veggies with fresh lime juice and chopped cilantro to add brightness and freshness. Serve immediately with warmed flour tortillas and your choice of favorite toppings such as avocado slices, sour cream, salsa, or extra lime wedges.

Notes

For a homemade fajita seasoning, combine 1 tablespoon chili powder, 1 teaspoon paprika, 1 teaspoon ground cumin, 1 teaspoon salt, 1/2 teaspoon onion powder, 1/2 teaspoon garlic powder, 1/4 teaspoon cayenne pepper (adjust to spice preference), and 1/4 teaspoon black pepper.
Use any colored bell peppers for visual appeal and flavor variation.
Marinating longer than 30 minutes (up to 2 hours) will increase flavor depth.
To keep tortillas warm, wrap in a clean kitchen towel and place in a low oven (about 200°F) while baking the fajitas.