The menu at The Gazebo changes often, but you'll always find something quick and filling. Depending on the season, you may find baked potatoes, soups, or shaved ice drinks. There are a few other items on the menu including Mickey Mouse-shaped cookies, and like every food place in Tokyo Disneyland there's a variety of beverages.
Because of its location near the central "hub," The Gazebo can get very crowded right after parades. This is probably the only time of day you'll find significant lines at The Gazebo. If you're looking for a quick bite away from the crowds, The Gazebo should fit the bill nicely.