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Easy Sheet Pan Chicken Fajitas Recipe with Bell Peppers and Onions for Perfect Weeknight Dinner

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A quick and easy sheet pan chicken fajitas recipe featuring bell peppers and onions, perfect for hassle-free weeknight dinners with bold, smoky flavors and minimal cleanup.

Ingredients

Scale
  • 1.5 pounds boneless, skinless chicken breast, thinly sliced
  • 3 medium bell peppers (red, yellow, and green), sliced into 1/2 inch strips
  • 1 large yellow or white onion, thinly sliced
  • 2 tablespoons olive oil
  • 1 teaspoon chili powder
  • 1 teaspoon smoked paprika
  • 1/2 teaspoon ground cumin
  • 1/2 teaspoon garlic powder
  • Salt and freshly ground black pepper, to taste
  • Juice of 1 lime
  • Optional garnishes: fresh cilantro, sliced avocado, sour cream, shredded cheese
  • Flour or corn tortillas for serving

Instructions

  1. Preheat your oven to 425°F (220°C). Line a 12×16-inch sheet pan with parchment paper for easier cleanup if desired.
  2. Slice the chicken breasts into strips about 1/2 inch wide.
  3. Cut the bell peppers and onion into similar-sized strips, about 1/2 inch thick.
  4. In a large mixing bowl, combine the sliced chicken, bell peppers, and onions.
  5. Drizzle with 2 tablespoons olive oil and sprinkle chili powder, smoked paprika, cumin, garlic powder, salt, and pepper over the mixture.
  6. Toss everything together until evenly coated with oil and spices.
  7. Spread the mixture out in a single layer on the prepared sheet pan, avoiding overcrowding.
  8. Roast in the oven for 18-22 minutes, flipping the chicken and vegetables halfway through (around 10 minutes) for even cooking and browning.
  9. Check that the chicken reaches an internal temperature of 165°F (74°C) and the vegetables are tender with browned edges.
  10. Remove from the oven and squeeze fresh lime juice over the top. Toss gently to combine.
  11. Serve immediately with warm tortillas and your favorite toppings such as cilantro, avocado, or sour cream.

Notes

Slice ingredients uniformly for even cooking. Avoid overcrowding the pan to prevent steaming. Flip halfway through roasting for caramelization. Fresh lime juice is essential for bright flavor. For crispy tortillas, warm them on a dry skillet for 30 seconds per side before serving. Marinate chicken briefly in lime juice and oil if desired to keep it moist.

Nutrition

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