Then may I make a suggestion?
Take a look at dinner with Cinderella, the Prince, the Stepsisters and Stepmother at 1900 Park Fare.
It's at the Grand Floridian, very easy to reach from the Magic Kingdom via monorail. It's a buffet, so the food is good-- make a point to try the cold strawberry soup if they have it.
And, best of all, each of the characters goes table to table for pictures and autographs.
Oh, and the stepsisters are a total hoot-- bickering and arguing over who is prettier.
Another great option is a meal at Aukerhaus in Norway at Epcot. (We did a late breakfast, more like a brunch, since at that point my middle child was such a picky eater.) Five different princesses (no telling which ones though) go table to table.
Also, if your daughter has an old princess Halloween costume somewhere, she can throw it on right before either (or both) of those meals. She'll be greeted as "Princess" or "Your Highness. (We found that it was simply too hot to wear in the summer heat for more than just the entry to the restaurants.)
Happy planning!