For a taste of Slavic school-canteen fare that most Czechs eat on a daily basis, head to this self-service canteen north of Můstek. Pick up a konzumační lístek ('consumption chit') at the door, head to the serving counters where dinner ladies ladle out the staples of Bohemian and Moravian cuisine, eat at the communal benches and pay on the way out.
You'll be in trouble if you lose that chit! Limited drinks (no coffee), seperate counter for sweet mains and a clientele ranging from brave tourists to hungry office workers.