Stir-frying seems like one approach. Very hot woks can be used to cook vegetables quickly. The speed of cooking would help to save fuel. The absence of water to boil would also fuel. The speed of heating up the unit, before cooking begins, would save fuel.
Okay, woks are usually heavy and large, but maybe the same sort of thing could be done with light-weight frying pans.
Not this one, though: http://vimeo.com/10589745
So. Where were we? Why do Canadians say "aboot"?
It does seem as if certain approaches to cooking might help to save quite a bit of fuel.
If anyone has any other ideas along these lines please feel free to post them.