Preheat the oven to 375°F (190°C).
Slice the eggplant and sprinkle with salt; let sit for 30 minutes.
Rinse and dry the eggplant.
Coat each slice in flour, then dip in beaten eggs, and finally breadcrumbs.
Fry the eggplant slices in olive oil until golden brown.
Spread marinara sauce in a baking dish.
Layer fried eggplant, marinara sauce, and mozzarella cheese.
Repeat layers until all ingredients are used.
Top with remaining mozzarella and Parmesan cheese.
Bake for 25-30 minutes until cheese is bubbly and golden.