Surprisingly, I don't think there's a ton of CS breakfast options in the parks. The hotels typically offer a hot breakfast of some sort, but I remember not finding a lot to eat in the morning actually while at the parks. Starbucks serves breakfast sandwiches and oatmeal, Epcot has Les Halles that opens around 9 (I think), Starring Rolls might have a hot breakfast option. I think most of the parks offer more of a "grab and go" type breakfast. I could be wrong tho.