Preheat oven to 400°F.
Mix together all seasoning ingredients
In a large bowl, toss together chicken, cilantro, bell peppers, onion, garlic lime juice, 2 Tbsp olive oil and prepared seasoning until well combined. If time allows, marinate for at least one hour.
Arrange chicken and vegetables on a lightly oiled baking sheet. Drizzle on remaining 1 Tbsp olive oil.
Bake in preheated oven for 20-25 minutes, until chicken is cooked through.
Sprinkle with a little fresh cilantro and serve with warmed tortillas.