Old School? Try Ancient
The counter staff at La Sala's is so gruff that they could take charm school classes from the greeters at Gates. They're alternately surly and exasperated with one another and their customers. It's well worth it- I've never purchased a sandwich at La Sala's that wasn't delicious. Few joints in Kansas City are less pretentious or more satisfying. La Sala's doesn't have a web site, of course, but the unitiated can find the Columbus Park diner a block away from the original Garozzo's.