Lechazo is a Spanish dish made from "cordero lechal". The meat used is from unweaned lambs, and is similar to veal, or the meat of "cochinillo" (Spanish suckling pigs like tostón asado). The province of Castile and León has a distinctive version of lechazo referred to as "Lechazo de Castilla y Leon". It is one of the most important dishes of the cuisine of the province of Valladolid. Also, Aranda de Duero is known as the heart of the dish, with numerous restaurants that specialize in lechazo and feature "hornos de leña", or wooden stoves, in which the lamb is roasted.
The lamb used in lechal must derive all its nutrition from its mother’s milk, and must be no more than 35 days old and weigh between 9 and 12 kilograms at the time of slaughter.