01 - Preheat oven to 425°F. Line a large sheet pan with parchment paper or foil for easy cleanup.
02 - In a large bowl, combine olive oil, chili powder, cumin, smoked paprika, oregano, garlic powder, onion powder, salt, and black pepper. Stir well to form a uniform spice mixture.
03 - Add sliced chicken, bell peppers, red onion, and minced garlic to the bowl. Toss thoroughly ensuring all pieces are evenly coated with the seasoning blend.
04 - Evenly spread the seasoned chicken and vegetables in a single layer on the prepared sheet pan.
05 - Place sheet pan in oven and roast for 20–25 minutes, stirring once halfway through, until chicken is fully cooked and vegetables are tender with slight charring.
06 - Remove from oven. Squeeze fresh lime juice over the mixture and garnish with chopped cilantro.
07 - Serve hot alongside warmed tortillas and optional toppings such as sour cream, guacamole, or salsa as desired.