Preheat an outdoor grill for medium-high heat. Lightly coat the grate with cooking spray.

Mix together garlic, 1 tablespoon olive oil, salt, and pepper in a small bowl. Toss chicken cubes in the mixture until coated. In a separate bowl toss green peppers and onions with remaining olive oil.

Thread chicken, green bell peppers, and onions onto the skewers.

Grill until chicken is no longer pink at the center and juices run clear, turning skewers every few minutes, 15 to 20 minutes. An instant-read thermometer inserted near the center should read 165°F (74°C).

Baste skewers with hot honey during the last 5 minutes until lightly charred.