Electric Umbrella at EPCOT offers breakfast CS. I also believe the Commissary at MGM does (or did) offer breakfast CS. At MK the bakery is your only CS type option for breakfast (but they use to do it during busy season at the Cosmic Rays CS). And at AK Tusker house offers breakfast CS (at least until they change to a TS buffet later). Of course, all food courts at the resorts offer CS breakfast too.