Latter part of Cold War was hotlocks containing any combination of babies heads (+ gravy, spuds and peas), egg bajos, ham bajos, egg and ham banjos. And of course the endex donuts - you can't eat one without licking the sugar off your lips. No in-flight grub on a Tronado sortie (they weren't very long).
Prior to being forced to eat incarcerated (no, thats's not a sort of Italian dish) in a PBF, the V-force provided a much more gentlemanly eating environment, pre-flight in the aircrew feeder, that is. As BEags said, the co-pilot (a thing of duty and a boy forever) was the box-carrier - sandwiches, hard boiled eggs, choccy bars various, squash, undrinkable brown liquid masquerading as coffee. Very rarely did anyone take the cans of soup airborne (I too remember lockers full of the stuff); the Vulcan soup heater needed activating during pre-flight checks to provide anything like a warm outcome, even on lengthy MRR sorties.
Mister B