I was surprised lamb wasn't mentioned in the beginning.
Trouble is you have to special-order it, at least at City Market / King Soopers. So I sometimes have lamb chops at restaurants.
But beef, hands down, on "the rest of your life" premise.
I had Burger King's "impossible burger" once and it was surprisingly good, but I wouldn't have it as a steady diet if regular burgers were available. An interesting experiment, though.
I'm not sure of the marketing thrust for either impossible burgers or baconified beef. I mean, if you're a vegetarian, you're a vegetarian, and if you keep Kosher, you keep Kosher, so why venture into a semi-forbidden area?