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Sheet Pan Chicken Fajitas

Colorful sheet pan chicken fajitas with peppers and onions ready to serve
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A vibrant, hands-off family meal where seasoned chicken and peppers roast together on one pan for maximum flavor with minimal cleanup. The build-your-own setup with warm tortillas and fresh toppings makes it a customizable weeknight win.

Ingredients

Scale
  • 1.5 to 2 pounds boneless, skinless chicken breasts or thighs, sliced into thin strips
  • 3 bell peppers (mix of red, yellow, and green), sliced
  • 1 large red onion, sliced
  • 2 tablespoons olive oil or avocado oil
  • 2 teaspoons chili powder
  • 1.5 teaspoons ground cumin
  • 1 teaspoon smoked paprika
  • 1 teaspoon garlic powder
  • 1 teaspoon onion powder
  • 0.5 teaspoon dried oregano
  • 0.5 teaspoon salt, plus more to taste
  • 0.25 teaspoon black pepper
  • 0.25 teaspoon cayenne pepper (optional)
  • Warm flour or corn tortillas, for serving
  • Fresh lime wedges, for serving
  • Chopped fresh cilantro, for serving
  • Diced avocado or guacamole, for serving
  • Sour cream or plain Greek yogurt, for serving
  • Shredded cheese, for serving

Instructions

  1. Preheat oven to 425°F (220°C).
  2. In a small bowl, whisk together the chili powder, cumin, smoked paprika, garlic powder, onion powder, oregano, salt, black pepper, and optional cayenne to make the fajita seasoning.
  3. On a large, rimmed baking sheet, combine the sliced chicken, bell peppers, and onion. Drizzle with oil and sprinkle the seasoning mix over everything. Toss with hands or tongs until evenly coated.
  4. Spread the mixture into a single, even layer on the pan.
  5. Roast for 20-25 minutes, stirring halfway through, until chicken is cooked through and vegetables are tender with caramelized edges.
  6. For extra sizzle, optionally broil for 2-3 final minutes, watching closely.
  7. Remove from oven. Squeeze juice from one lime wedge over the top and toss.
  8. Serve immediately with warm tortillas and all desired toppings.

Notes

Avoid overcrowding the pan; use two sheets if needed for a single layer. For extra tender and charred veggies, give them a 5-minute head start in the oven before adding the chicken. Leftovers store well for meal prep.

Nutrition

Find it online: https://www.stacksipsnack.com/sheet-pan-chicken-fajitas/