Duck - while you're hot on the trail of fatigue management, for totally altruistic reason's I'm sure, would you consider campaigning for "free lunches" for all staff, in all fields of endeavour, who work long or antisocial hours.
I'd love to hear you justify why your trough should be filled with free grub while just about every other wage and salary earner provides their own catering during a normal working day. You have galleys, you have refrigerated compartments, you have ovens and you may even get on well enough with some of the cabin staff to have them toast your ham and cheese sandwiches for you.
I believe Qantas have some left over boxes that are a perfect size for an inflight meal. If you're quick you can snare a lifetime supply for a song.