Lampe gras is a traditional French dish that consists of lamb or mutton cooked in fat and onions. The dish is made by roasting the meat over an open flame on a spit.

Lampe gras was originally created in France during the Middle Ages. It has been enjoyed for centuries and has become a tradition in many households.

In the 1800s, lampe gras became popular in America after it was introduced by French immigrants who brought the recipe with them to America.