Not sure how true, but did remember hearing a tale a good few years back of a Tonka crew being given Pot Noodles or something similar when on a long transit. Probably apocryphal, but not surprising if it did happen - I remember doing a long trip on a Herc only to find the butty boxes covered in yoghurt which seemed to have exploded at altitude.
And for all it's faults, I remember being the Army HQ Duty Officer (always an interesting one for an RAF officer) over a couple of weekends and when I went into the Mess for lunch was generally greeted in person by the chef with a cheery 'what would you like? The steak's good' before getting a freshly cooked slab of steak and the world's largest portion of fries and veg. Almost made it worth the nause of doing the duty.