The Sopranos. Much of the dialog in the series took place over food. At Tony's house, at Satriale's, his friend's Italian restuarant, etc. I seem to recall reading something by the writers that they purposefully used food extensively. I just can't remember why. Maybe they just wanted to push sales of this:
http://www.amazon.com/Sopranos-Famil.../dp/0446530573