Small sandwich? Those things are normally obnoxiously huge to the point where you're pulling off meat and cheese just to get it into your mouth.
Not that they're any good, but I've only seen a few 'hockey pucks' over the past few years.
They go away April 1st and I really couldn't be happier because most were sub par and I'd end up going to the airplane, checking the crew meal box, then rushing thru a preflight to go back to the terminal to get something acceptable.