1. Cut the polenta into 1/4 inch thick rounds, and place on a baking sheet covered with tin foil. Lightly baste the slices with EVOO and broil for about 4 minutes. (Basically, the point of this step is just to heat your polenta slices through, so the EVOO is probably not necessary.
2. Top each slice with a small spoonful of pizza sauce and a slice of mozzarella. Broil until cheese is brown and melty.