All the Chinese (PRC and Taiwanese) have recommended Bella Cristal on Pastoriza as the best. There's also a place in "Chinatown" on the second floor that's good. The Korean restaurant Mana off Betancourt is the best Asian restaurant in the DR, I think. To cook Asian food at home, try Asiatico market on 27 de Febrero (past Nunez & Privada) and Wah Sen market on Betancourt near Nunez. For bubble tea in an Asian garden try Para Te off Nunez. For dim sum (on Sundays) try Palacio de Jade near the Malecon. And if you find good fish congee (rice porridge) -- my favorite breakfast -- please report back!