, stems discarded and quartered
HEAT a large pot over medium-high. Add oil, then pork. Cook until golden-brown, 2 to 3 min per side. Transfer to a plate.
ADD rice, garlic and ginger to pot. Cook, stirring constantly, 1 min. Add broth. Stir in hoisin and hot chili-garlic sauce. Arrange mushrooms and pork over rice and broth. Boil, then reduce heat to low. Simmer, covered, until rice is almost tender, 10 to 12 min.
REMOVE lid. Lay bok choy over pork and rice. Cover and continue simmering until greens are just tender, about 5 more min. Drizzle with sesame oil.