I posted in another thread that the Food & Wine booth offerings were like appetizers and did not give a "full" feeling to my parents or I, and we ended up having supper in a World Showcase restaurant. I don't remember which one; it was either 9 Dragons or San Angel Inn. We were able to eat there without reservations. Another poster to that thread said he did indeed find the booth offerings filling, and I had no reason to doubt his personal experience, or certainly doubt my own. So, taking both of us posters' personal experiences into account, maybe you'd want to start out doing the food booths without making a reservation, and if that isn't filling you up, drop in on one of the World Showcase restaurants. Le Cellier is always booked and requires reservations, but there are other restaurants, like 9 Dragons and Restaurant Marrakesh, that you are able to walk into without reserving ahead of time.