01 - Preheat the oven to 400°F. Line two baking sheets with parchment paper and lightly coat with oil.
02 - Arrange eggplant slices on a wire rack or paper towels, sprinkle both sides with salt, and let sit for 30 minutes to draw out moisture. Pat dry completely.
03 - Set up three shallow bowls: one with flour, one with beaten eggs, and one with a mixture of breadcrumbs, Parmesan cheese, oregano, and black pepper.
04 - Dredge each eggplant slice in flour, dip into beaten eggs, then coat evenly with breadcrumb mixture. Place breaded slices on prepared baking sheets.
05 - Drizzle or brush olive oil over eggplant slices. Bake for 20 minutes, flip each slice, then bake an additional 10 minutes until golden and crisp.
06 - Spread a thin layer of marinara sauce in a 9x13-inch baking dish. Layer half the eggplant slices, top with sauce and half the mozzarella. Repeat layers and finish with Parmesan cheese.
07 - Bake uncovered for 20 to 25 minutes until cheese is melted and bubbly with a golden crust.
08 - Allow to rest for 10 minutes before serving. Garnish with fresh basil leaves.