Sitaara is a solid option for vegetarians seeking food at the Shinagawa JR Station. I would not go out of my way to eat here over other vegan-friendly establishments in Tokyo, but Sitaara was definitely a reasonable place to eat lunch. There were 3 or 4 prix fixe options for vegetarians, which generally consisted of a Northern Indian vegetable dish (eg. aloo saag or channa masala), served with basmati rice, naan and vegetable pakora. There were also a number of vegetarian sides available (eg. samosas, salads and Indian snacks). The hibiscus iced tea is a house specialty and it is quite tasty. The food itself is pretty standard Indian fare (albeit, a bit on the bland side). That said, the service was extremely quick and the Indian waitstaff spoke English fluently, which made for a pleasant, hassle-free dining experience.