Gyros—in some regions, chiefly north america, anglicized as a gyro (; greek: γύρος, romanized: yíros/gyros, lit. 'turn', pronounced [ˈʝiros])—is a food item of greek origin made from meat cooked on a vertical rotisserie and served wrapped or stuffed in pita bread, along with ingredients such as tomato, onion, fried potatoes, and tzatziki. in greece, it is normally made with pork or sometimes with chicken, whilst beef and lamb are also used in other countries.
Source: Wikipedia