A lot of old-timey saloons would just put out a lunch buffet and as long as you bought one drink you could take what you like. Pretty good food by some accounts.
I talked to my Dad and he claimed this was still a thing in a few places as late as the early-80s, there were places with "happy hour" where they would put out a small buffet like once a week. He said in college he'd go to them and buy one beer and fill up.
in new orleans during football games on sundays, some bars will put out a spread of food for people. it's great food too because it's new orleans.