The difference between a menu at Pizza hut and professional food photography is a lot to do with the set up and theme of the image. Professional food shoots usually consist of a lot of preparation. The lighting and placement of everything is essential to get a good shot. Places that are taking pictures for menus rarely think about how the set up looks, the background lighting etc. It's mostly about the food, but even then, most of the restaurants don't go as far as professional photographers when fixing the food.
Michael Ray
Shawn Taylor