Kona Kafe at the Poly has some great breakfast options. Tonga Toast, Big Kahuna.
Really best to pay OOP for it though, as a complete waste of a TS credit on the dining plan.
They are open for breakfast until at least 11am so I tend to plan MK or Epcot at RD hitting up all the priority rides and then it's a quick trip on the monorail when the park starts to get busy.
You can then park hop or return to the same park for your afternoon FP+'s