TS are Captains Grille, Cape May Buffet, Kouzzina. I believe Fresh and Garden Grove at the S&D also serve breakfast. If you have park admission, you're close to EPCOT and DHS so you could also try Akerhus or Hollywood & Vine.
Kouzzina is right on the Boardwalk, so less than 5 depending on where in the hotel you are. Same with Boardwalk Bakery. Belle Vue Lounge is in the hotel, off the lobby.
Beach Club has BC Marketplace and Cape May Cafe and that's right across the lake, no more than 10 minutes between your room and the restaurants I'd estimate.
Garden Grove, Picabu and Fresh are all in the S&D sound the lake to the other side and probably also 10 minutes or less.
For TS we LOVE Captain's Grille buffet at YC. 10 min. walk tops from BW. It is a nice, relaxed atmosphere, and the food has always been hot & plentiful, and many choices. They do have an ala carte menu if you don't want the buffet. For CS we love Picabu over at The Dolphin, again 10 min. walk from BW. For very quick service we grab things to go at The Boardwalk Bakery, on The Boardwalk.