Preheat oven to 400 degrees. Arrange the eggplant slices on a baking sheet, spray lightly with olive oil cooking spray, sprinkle them with salt & pepper.
Bake for 15-20 min until slightly crispy. Remove from oven. Top each eggplant slice with 1-2 Tbsp sauce, 1 Tbsp Mozzarella cheese and 1 Tbsp shredded Parmesan Cheese.