I know at uni one of the things we had to focus on was studio work and I did a bit of food stuff using 5x4" cameras to do all that Schiemflug, tilt 'n' shift stuff where you create really interesting DoF. A shedload of lights also helped, as did some good food. We tended to stick to abstract stuff in the end because being students all we could cook was Pot Noodles
Did have a talk from a food togger and he said to keep food look fresh under lights, spray with hairspray to give it a shine and also have an atomiser handy for adding moisture droplets.