Combine marinade ingredients, thaw chicken and set to marinate for at least one hour or as long as overnight
Cut onions and peppers into thin strips
One half hour before serving time, cook onion in oil. When onion is starting to get soft, add peppers and cook until soft
Remove chicken from marinade and cook on outdoor or indoor grill. We use a George Foreman Grill https://amzn.to/39fO3RE.
Serve with tortillas, cheese, salsa, sour cream, guacamole, and Spanish rice