Didn't know where else to ask this, but what do restaurants [especially buffets/cafeterias], grocery stores' delis, etc. do with any leftover prepared food?

I remember there used to be something called "Second Harvest" [or maybe "Second Helping"] where the food establishments donated the food remaining at the end of the day to the various food shelters, etc. But then, it seems that there was some controversy about it, and it stopped.

In these times with so many in need, does anyone or group do this....or is all the leftover, good, edible food just wasted???

Anyone know?