1) open to eitherResort or Disney Springs? Quick service or table service? Will you have a car?
My suggestions include Captain Cook's at the Poly, Sanaa at AKL-Kidani or Boma at AKL-Jambo, Olivia's at Old Key West, Il Mulino at the Swan, D-Luxe Burger or Homecomin' at Disney Springs
Raglan Road, for sure. Such a fun and delicious dinner.
Others: California Grill, Il Mulino, went to Grand Floridian Cafe years ago and it was delicious but I haven't been in a while.
Places I haven't been to but would love to go without kids - Yachtsmen, Nacrossee's, Artist's Point, The Boathouse, Citricos, Bluezoo