“If we consider the fuel that it took on the farm and on the roads, the energy it takes to process our foods, and make our fertilizer, food is very valuable indeed!”
If you are a gardener then why throw out food waste? There are many ways to it, you can either add it to your normal compost bin or have a separate container.
There is a myth about not composting cooked food as it attracts rats. Rats are survivors and they do not spend time hunting out cooked food, they will eat anything they can find.
We have been using a HotBin to compost food waste for a few years now and find it works well. Like all composting the trick is to get the right mix of contents and the add material in batches and not a few bits at a time There is more here
If you want to compost food waste from a school then look at the Ridan composter. It is much easier to use especially where food waste is added on a daily basis. It is much more expensive.