Ganzi's restaurants are simple and unpretentious, concentrated along the main commercial street. The local food runs to yak meat in various forms — hot pot, stir-fried, dried — along with tsampa (roasted barley flour, eaten as porridge or mixed with butter tea), momos (dumplings), and thukpa (noodle soup). Tibetan butter tea is the standard drink and an acquired taste; the salted, fatty quality that makes it seem odd to the uninitiated makes more sense after a few hours at altitude.
The main street has several small restaurants run by Han Chinese migrants alongside Tibetan establishments. The Han restaurants serve standard Sichuan dishes — mapo tofu, stir-fried vegetables, rice — that are somewhat easier on palates unused to the Tibetan staples. Either way, prices are low and the portions are generous. Don't expect a menu in anything but Chinese.