Shawarma is a popular Middle Eastern dish that originated in the Ottoman Empire. It is made with thin slices of meat, typically lamb, chicken, or beef, that are stacked on a vertical rotisserie and roasted slowly over an open flame. As the meat cooks, it is shaved off the spit and served in a pita bread with vegetables and a sauce. Shawarma is a popular street food in many Middle Eastern countries, and it can also be found in many restaurants around the world.