Slice eggplant into paper-thin round sections. Pat off excess liquid with a paper towel to remove bitterness from the eggplant. Sprinkle with salt and pepper if desired.
Grill on a non-stick grill pan at medium-high heat, about 2-3 minutes per side until it begins to soften and you see nice grill marks on the eggplant.
Meanwhile, combine all filling ingredients.
Place a generous spoonful of filling into each eggplant circle, roll up each end (like a taco) and place one slice of basil and one thin strip of mozzarella on top.
Bake at 400 for 15-20 minutes, until mozzarella is golden brown.