Mimi Cheng's, a new Taiwanese dumpling bar in the East Village, is a family affair. Opened by sisters Hannah and Marian Cheng, it's named after their mother Shirley (Mimi is her nickname). The restaurant, at 179 Second Ave., opened Thursday and has three permanent dumplings on the menu: their mother's chicken and zucchini recipe; pork with baby bok choy and cabbage; and a veggie dumpling with kale, zucchini, egg and shiitake mushrooms (six for $8, or eight for $10). There will be a rotating savory dumpling, as well as a rotating market vegetable and dessert dumpling. The meat is sustainably raised and locally sourced, and most ingredients are organic. The eatery's interior has a beach house feel, with white reclaimed wood and reggae music playing.