Place the eggplant slices on a plate, and cook in the microwave for about 5 minutes, or until the centres are cooked.
Melt margarine in a large frypan over medium-high heat. Fry eggplant slices until lightly toasted on each side, and place one slice of cheese onto each one. Cook until cheese has melted, and remove from the frypan.
Place eggplant on hamburger rolls, and allow each person to top with lettuce, tomato, onion and pickles, and dress with tomato sauce, mayonnaise and mustard.