Tatsoi (Brassica rapa var. narinosa) is a Chinese vegetable in the Brassica family and a type of mustard green. What family is tatsoi in? Tatsoi (Brassica rapa subsp. narinosa or Brassica rapa var. rosularis) is a member of the brassica family—along with . mustard greens and Brussels sprouts. Can tatsoi be eaten raw? Tatsoi is […]