In a large ziplock bag with the top folded down, combine the first 10 ingredients.
Close top and mix with hand to incorporate.
Reserve 1/8 C marinade to cook with peppers.
Add chicken to ziplock bag, close top, mix until covered well.
Refrigerate for at least 30 minutes, longer for stronger flavor.
In a large fry pan, sprayed with cooking spray, warmed to medium high, drain off most of the marinade and add chicken, cook 4-5 minutes or until lightly browned, stirring frequently.
Remove from skillet.
In the same pan add peppers, onions, and reserved marinade, cook 4-5 minutes or until crisp-tender, stirring.