Gusto said:
Sweet/salty/bitter/sour, I believe, are the four main taste groups.
There is a fifth taste category, umami, sometimes called savory. *ninjaed!*
But if you're craving meat, potatoes, cheese, etc, I'd call that savory (not necessarily related to the fifth taste category, though they all do stimulate that to some extent). Meat isn't necessarily salty, bitter or sour, so I don't see what bringing them up has to do with the conversation.