I would recommend to you basically any of the restaurants on Restaurant Row on Sand Lake Road. Off the top of my head, there is a Ruths Chris, Mortons, Bonefish, Seasons 52, Samba Room, Timpanos Chophouse, The Melting Pot, Carrino's (Italian). There are more, but those are what I remember off the top of my head. IM sure you could google "Restaurant Row Orlando" and get more. These locations are all very close to Disney.
In Winter Park, there is Del Frisco's Steakhouse which is excellent. If you want to go to Park Ave in Winter Park, there are a lot of restaurants there as well, and you can meet/see locals (yes, people actually LIVE in Orlando haha). Chex Vincent is good, Panullo's Italian place is good and more kid friendly, Dexter's, 310 Park Ave, The Bistro.
Also, in Disney at the swan, there is a restaurant called "The Blue Zoo." Its kind of a well kept secret and a lot of locals actually go there too. Its a great place to eat, and swanky too!
I would be comfortable recommending any of the above to you. If you have any other questions, let me know and I'd be happy to help!