Since the establishment of BF Restaurant Chang's, he was a BF chef. The Changs prepare and roll dim sum, cut all the vegetables and meat by hand, and prepare the sauces and all the dishes using a wok, every day in every restaurant. BF's menu always highlights. Chang's highlights her healthy approach to cooking, preparing food to order and introducing new dishes and drinks for lunch, events and dinner. Today, BF. Chang's has more than 300 restaurants around the world, including 25 countries and US airport locations.