01 - Preheat the oven to 400°F. Line two baking sheets with parchment paper.
02 - Arrange eggplant slices in a single layer on baking sheets. Lightly brush both sides with olive oil and season with salt and pepper.
03 - Roast eggplant for 20 to 25 minutes, turning halfway through, until tender and lightly golden. Remove and let cool slightly.
04 - Reduce the oven temperature to 375°F.
05 - In a medium bowl, combine ricotta, Parmesan, egg, basil, parsley, garlic, nutmeg if using, salt, and pepper. Mix until smooth.
06 - Spread 1 cup of marinara sauce evenly over the bottom of a 9x13-inch baking dish.
07 - Place 2 to 3 tablespoons of ricotta filling at one end of each eggplant slice. Roll tightly and arrange seam-side down in the baking dish.
08 - Spoon the remaining marinara sauce evenly over the rolls. Sprinkle shredded mozzarella, Parmesan, and breadcrumbs if using on top.
09 - Cover with foil and bake for 20 minutes.
10 - Remove foil and continue baking for another 10 to 15 minutes, until bubbly and golden on top.
11 - Allow to rest for 5 to 10 minutes before serving. Garnish with additional fresh basil if desired.