Prego

Prego is a ubiquitous Portuguese sandwich prepared with thin slices of beef that are seasoned with garlic, fried, sautéed alongside onions and wine, then placed inside a bread roll. The name prego translates to a nail, and though it is not certain, it is believed it refers to the act of pounding or nailing garlic slices onto the steaks. Though it is sometimes served without any condiments, prego is typically accompanied by mustard and hot sauce, and is occasionally topped with a fried egg. If served on a plate, when it is usually paired with fries, rice, and a fried egg, it usually goes under the name prego no prato.