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

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A quick and easy sheet pan fajitas recipe featuring chicken, bell peppers, and onions roasted together for a flavorful and satisfying dinner with minimal cleanup.

Ingredients

Scale
  • 1 pound boneless, skinless chicken breasts or thighs, sliced into thin strips
  • 3 medium bell peppers (red, yellow, green), sliced into strips
  • 1 large onion (yellow or white), sliced thinly
  • 2 tablespoons olive oil
  • 2 teaspoons fajita seasoning (chili powder, cumin, smoked paprika, garlic powder, onion powder, pinch of cayenne)
  • Salt and black pepper to taste
  • Juice of 1 lime
  • A handful of fresh cilantro, chopped (optional)
  • Optional toppings: sour cream, shredded cheese, avocado slices, tortillas

Instructions

  1. Preheat your oven to 425°F (220°C).
  2. Slice the chicken into ½-inch thick strips. Slice the bell peppers and onion into similar-sized strips.
  3. In a large mixing bowl, combine fajita seasoning, salt, and pepper. Add olive oil and lime juice, then toss to combine.
  4. Add the sliced chicken, bell peppers, and onions to the bowl. Mix until everything is well coated with the seasoning blend and oil.
  5. Spread the chicken and veggies in a single layer on a rimmed sheet pan, avoiding overcrowding.
  6. Roast in the oven for 20-25 minutes. Halfway through (around 12 minutes), use tongs to flip the chicken and stir the veggies for even cooking and caramelization.
  7. Check that the chicken reaches an internal temperature of 165°F (74°C) and that the peppers and onions are tender with some charred edges.
  8. Remove from oven and squeeze fresh lime juice over the pan. Sprinkle chopped cilantro on top.
  9. Serve immediately with warm tortillas and optional toppings like sour cream, cheese, or avocado slices.

Notes

Use a rimmed sheet pan to avoid overcrowding and ensure proper roasting. Flip ingredients halfway through cooking for even caramelization. For gluten-free, use corn tortillas or skip tortillas. For low-carb, serve over cauliflower rice or salad. Lining the pan with parchment paper or foil helps with cleanup.

Nutrition

Keywords: sheet pan fajitas, chicken fajitas, easy dinner, bell peppers, onions, quick fajitas, healthy fajitas, one pan meal