Feeding a basketball team in ORLANDO
How far are you willing to drive and what kind of prices are you looking for? Off the cuff I'd say drive 10 minutes to Celebration for upscale diner food at the Market Cafe, or maybe New England-style seafood at Celebration Town Tavern. Both are pretty cheap, not chains, and fairly good, and have options for picky teens and parents with decent taste.
I love the burgers at Fuddrucker's, which is right off I-4 exit 68 near Disney, close to the Gooding's supermarket. (I assume you're staying in that area?)
You could probably get better burgers in New York, but you'd pay a lot more. Fuddrucker's should be perfect for a large group of rowdy teenage boys.