Our family LOVES White Water Snacks for breakfast. And for lunch, btw, their pizza is a best-kept secret that is also affordable to feed a family, and their nachos are so amazing!
But to answer your question about coffee: no, they don't have lattes, etc. (I know this because we recently took a trip with friends who were staying at the GCH and announced that they didn't have "real" coffee drinks there!) You can get espresso-style drinks at the Hearthstone Lounge, though, in GCH and then pick up your breakfast at White Water.