Their commercials relentlessly reinforce the notion: Steak 'n Shake is a sit-down restaurant that just happens to serve up food served up quickly. They even break plates to prove the point! For years now, Steak 'n Shake has been a destination with a slightly higher grade of class than your average fast food joint. Just dig the scene on a Sunday afternoon, when the restaurant's full of families on the way home from worship, or the parent's house. Suits and dresses at a burger joint? You betcha.