This is typically called lu-rou-fan, meaning braised pork (lu-rou) on rice (fan). It’s a generic and sometimes misleading name because, to be more accurate, it is also called rou-zao-fan, meaning braised pork belly with fried shallots (rou-zao) on rice (fan). Rou-zao is a very specific and uniquely Taiwanese thing. If you are not from or have never been to Taiwan, where this left an impression on you, chances of your slightest interest are scarce.