In a large skillet or wok, heat the butter or oil. Chop the chicken into bite sized pieces and add to pan. Sprinkle with some of the spices and cook until completely cooked. Slice the onions and add when chicken is almost done. Slice zucchini and chop broccoli into florets and add to pan. Sprinkle with additional spices if desired and cook another 5-7 minutes until all vegetables are tender.