Preheat oven to 400°F (200°C).
Place sliced chicken, bell peppers, and onion on a large sheet pan.
Drizzle olive oil over the ingredients and toss to coat evenly.
Sprinkle chili powder, cumin, paprika, garlic powder, onion powder, salt, and black pepper.
Toss again until everything is well coated with seasoning.
Spread ingredients into an even layer on the sheet pan.
Bake for 18–20 minutes, stirring halfway through.
Remove from oven and drizzle with fresh lime juice.
Garnish with chopped cilantro before serving.
Serve warm with flour tortillas.