Preheat oven to 400°F (205°C).
Line baking sheets with parchment. Arrange the eggplant slices in a single layer. Sprinkle lightly with salt and let sit for 15 minutes to draw out moisture. Pat dry.
Brush slices with olive oil and bake for 15–18 minutes until soft and flexible.
In a mixing bowl, combine ricotta, mozzarella, Parmesan, egg, garlic, basil, parsley, salt, and black pepper. Stir until smooth.
Spread a thin layer of marinara sauce on the bottom of a baking dish.
Add 1–2 tablespoons of filling to one end of each eggplant slice. Roll tightly and place seam-side down in the dish.
Spoon marinara over the tops, sprinkle mozzarella and Parmesan.
Bake 20–25 minutes until bubbling and golden. Allow to rest 5 minutes before serving.