This recipe is adapted from one in Bento Boxes by Naomi Kijima. It is scaled for a single lunchbox (bento box) sized serving. Add this to a big bowl of rice and veggies, maybe with some Japanese type pickles, and you have a great lunch! This recipe is not a quick recipe, though; cooking time includes marinating time. I would suggest starting the chicken in the marinade, then starting your rice, then fixing everything else while you wait for these two to finish.