Slice the eggplant into round slices and grill on both sides on a grill pan until tender.
Grease a baking dish with olive oil, then pour in the marinara sauce.
Layer the grilled eggplant slices, followed by tomato slices, mozzarella, and another layer of eggplant. Sprinkle grated Parmesan on top.
Bake in a preheated oven at 180°C (350°F) for 15-20 minutes.
Remove from the oven, top with pesto sauce and fresh basil leaves. Serve warm.