I've got a few unopened 24 and 12 hour british army ration packs (boil in the bag type). Suit a camper/ walker or cadet. Some may be towards the end of their "use by date" but they last perfectly well for years past it. Others are well in date.
Use at own risk though of course.
If a few people want some ill give one or two each depending on numbers.
Collection from kempston.
(Stock photo)