Submarines, occasionally served us meat that you couldn’t tell the species of. We called it “mystery meat” as it was a mystery where it came from. Deployed on a fast attack in ‘78 or ‘79 and got the word we would likely be extended substantially due to international events. Cooks started digging deep into the corners to see how much food we had onboard and found a couple cans of bacon in OD green cans that was WW 2 vintage or nearly so. Powdered eggs after being under way long enough to run out of fresh stores. Not delicious. Used the “bug juice”, Kool Aid like stuff, to clean the burned on carbon off the flat top grill. Made it like shiny and new. Never drank much of that.