One of my happiest experiences was playing in a restaurant for a couple of years.
I played the Bach Inventions, skipped around in the WTC, Chopin waltzes, Mozart
concerti arranged for 2 pianos (playing both parts--kooky!), Rhapsody in Blue, the Gershwin preludes, Art Tatum transcriptions, all sorts of things--no junk.
But, the other poster was right: It all depends on your crowd. This was a quality but laid back restaurant run by ex-hippies. I've played in other situations, less happily, where the owner gave me a list of things to play: As time goes by, I left my heart in SF, Beatles, etc.