AK - Pizzafari for the Italian melt sandwich with the caesar salad on it. I think it was on sourdough bread, too. Yummmmm.
Epcot - Yakatori. The sushi is good not great but it just tastes so much better when sitting outside on the bench in front of the lagoon waiting for the character bus to arrive. Also one of the cheapest beers in the World Showcase. $7.50 for a Beck's? Come on. Kirin Ichiban, $4.50.
We like the Plaza Pavillion in MK for the gigantic italian sandwhich. Its just off Main St, past Plaza Resturant. Really good deal if you dont mind sharing your fries with the pigeons. My kids get a kick out of throwing them a couple.