Mix first 5 ingredients together and pour over chicken in a deep pan. Marinate overnight.
Cook chicken in marinade over low heat just until done. Remove from marinade and cool.
Add potatoes and green peppers to marinade along with 1 c. water. Cook until potatoes are fork tender.
Meanwhile, lightly coat chicken in flour and dry in a small amount of oil until brown. (I have also grilled the chicken without coating it to make it lower in calories).
Remove vegetables from marinade.
Thicken marinade with a cornstarch/water slurry to make a gravy. Serve gravy over the rice and vegetables.