What type of food are you looking for? The whole of 192 is awash with chains, but very little else. Around the area you're staying (between markers 10 and 12) are, amongst others, branches of Damons, Ponderosa, Pizza Hut, Red Lobster, Uno, Chili's, Darryl's, Perkins, Denny's, TGI's, Taco Bell, and, of course, McD's, BK and KFC. Further west you will also find Outback Steakhouse and Carrabbas.
The new Gaylord Palms resort at the junction of Osceola Parkway and International Drive South (a 5-10 minute drive) has 3 restaurants: the critically acclaimed Sunset Sam's Fish Camp (which is partly on a sailboat, on a lagoon, inside the hotel!), the Old Hickory Steakhouse (a shack in the Everglades) and Villa de Flora (described as a "European market" set in a grand dining room of an old-world mansion). We've eaten lunch at Sunset Sam's and it was very good, although I think it is the dinner menu which gets the rave reviews. The most relaxed (and probably the cheapest) is Villa de Flora. Even if you don't eat there, it is worth a visit - the place is amazing.
You could also check out one or more of the restaurants at Celebration, again worth a visit in its own right.