Zrazy
Zrazy is a meat roulade dish popular in Poland (Silesian rouladen), western Belarus and Lithuania. Its origin can be traced back to the times of the Polish–Lithuanian Commonwealth. Classic zrazy have a rolled shape and are made of thin slices of beef, which is flavored with salt and pepper and stuffed with vegetables, mushrooms, eggs, and potato. It is unknown exactly when this dish was invented as well as which region of the former Polish–Lithuanian Commonwealth first produced it; both Poland and Lithuania claim to have created zrazy.
Source: Wikipedia