Roast pork, black beans and rice with ripe plantains at Mio Dish of the Week: Roast pork, black beans and rice with ripe plantains Where: Mio Mio Restaurant has gone through a lot of chef changes since it first opened in 2006. But the restaurant seems to have settled in to a comfortable groove. The roast pork dish ($17) on Mio’s lunch menu has a wonderful mix of flavors. On a recent visit, the…