Preheat the oven to 400°F (200°C) to ensure even roasting
Slice the chicken into thin strips for faster cooking and tenderness
Cut bell peppers and onions into even strips for uniform roasting
Add chicken and vegetables to a large mixing bowl
Drizzle olive oil over everything to help seasoning stick
Add all spices, minced garlic, and lime juice
Toss thoroughly until chicken and vegetables are evenly coated
Spread mixture onto a large sheet pan in a single layer
Bake for 30–35 minutes, stirring halfway through for even cooking
Remove from oven once chicken is fully cooked and veggies are slightly charred
Garnish with fresh cilantro before serving