After 9AM you can hit a couple of rides early before breakfast (try meeting princesses, or Splash Mt, BTMRR, or Pirates, HM).
The breakfast itself was surprisingly great. variety of options and drinks. It stays up and refreshed till ~10:15 AM. When we were done with Breakfast we took some pastries and chicken sausages to go, and munched on them during lunch time (so saved on lunch too), till it was dinner time.