canned salmon is awesome
Alaskan coho salmon is the best food I've ever eaten from a can.
I often carry venison jerky or sticks
(slim jims) with me.
I finally found a butcher that makes decent sticks & doesn’t charge out the ass for them.
Lean, red meat – no prep, you don’t have to keep it cold, etc.
I also like smoked steelhead fish.
I don’t get it that often because I hate fishing, so I rely on relatives to catch & prepare the stuff.
Both of the above are easy to carry, quick to eat, healthy as anything - and the only prep time is putting them inside a bag before leaving the house.