1900 PF at the GF has breakfast ADR's up until about 11:20. Mary Poppins, Pooh, Tigger, Alice and the Madhatter is the usual line-up of characters. It is one of the better character breakfasts. My girlfriend and I have gotten a pastry and some juice early in the morning at our resort, go to RD, do a bunch of rides and get a couple of FastPasses, then head over for "brunch". By the time the meal is done, the FP's are usually good to do, which is nice not having to wait on too much of a line after a big meal.
If you check the menu's on all-ears, at the top it will usually say what times that menu is in affect. That should give you a good idea as to what will still be serving breakfast later in the morning.