Time Out says
Something of a Zagreb fast-food institution, Pingvin has been serving toasted sandwiches since 1987 and has long been considered the city’s most dependable source of late-night munchies. It’s disarmingly simple - just a service window and three rest-your-elbows tables in the entrance to a courtyard. It’s also one of the first places where new arrivals get to try Croatia’s famous dry-cured ham, the pršut and cheese combo (24Kn) being one of Pingvin’s standard orders. You can also get hot dogs, burgers, tuna salads, simple grills (at 34Kn the fillet of sea bass is arguably the classiest option on the menu), and that Central European after-pub classic, cheese fried in breadcrumbs.