Beef. I could never grow tired of eating cow. Plain, low fat, high fat, I don't care. It has a good source of protein, and it is always my go to and if it's still on the bone, even better. I'd rather have my beef plain as well, anything added to it is okay... but I really just care about the meat. No seasonings, no green leaf, no water tomato. Just meat. But that's just a fantasy eh? You can't actually live off one thing. So of course I pair my beef with fresh steamed vegetables.