-Use leftovers, and if you aren’t a leftover person, find someone/something who is (don’t forget about any hungry pets). Find a local food bank near you here.
-Compost- if you don’t have a city that composts, here’s a good introduction to back yard composting: http://www.homecompostingmadeeasy.com/foodscraps.html
The hope is to divert food scraps from landfills. These individual actions are necessary not only to do they potentially reduce waste, but also because these individual actions accumulate into the overall cultural whole that produces the social relations that contribute to waste. And when in doubt, you can always consult the food recovery hierarchy: