What happens to all the food wasted by diners at restaurants and weddings?I have spent many years in the industry, including weddings for hundreds of guests, and owning a restaurant. Anything that has been served to guests, gone out on a buffet or on a guest plate gets thrown away. There are too many liability issues with food which has been out of the control of the hospitality provider (ranging from people putting "stuff" into the food, to long time outside the safe temperature zone) to donate this food anywhere.
Wedding (or other catering food) that is over-prepared, but has not been plated/served/put on the buffet is often donated to shelters, food-banks, etc..., but only if it has been properly stored/kept outside the bacterial danger zone until the end of the event.
In India it becomes "Malai or any other Kofta" Google