- The definition of a plat du jour is the dish of the day, or special prepared by a restaurant on a particular day in addition to the regular menu.
When a restaurant makes lasagna only on one special day and offers it as a special that is not on the regular menu, the lasagna is an example of plat du jour.
plat du jour definition by Webster's New World
the featured dish of the day in a restaurant
Origin: French dish of the day