Xu Xiang Zhai is in a historic location near the Temple to Confucius (Guozijian) and the Lama Temple (Yonghegong), both well worth visiting. The lunch buffet (open until 2pm) offers great variety and quantity of conventional-seeming Chinese food, for a very reasonable price. The restaurant is elegant and clean and the service is good. Best of all, you can take red-meat eating friends along and tell them afterwards that they're been eating flavoured bean curd. They may not believe you!