01 - Preheat the oven to 400°F. Line two large baking sheets with parchment paper.
02 - Arrange eggplant slices on a tray. Sprinkle both sides with salt and let rest for 20 minutes to remove excess moisture. Pat dry with paper towels.
03 - Set up three shallow bowls with flour, beaten eggs, and a mixture of breadcrumbs, 1/2 cup grated Parmesan, oregano, garlic powder, and black pepper.
04 - Dredge each eggplant slice in flour, dip in beaten eggs, then coat evenly with the breadcrumb mixture.
05 - Place breaded slices on prepared baking sheets. Lightly brush or spray with olive oil. Bake for 20 minutes, flipping halfway, until golden and crisp.
06 - Heat 1 tablespoon olive oil in a saucepan over medium heat. Sauté minced garlic for 1 minute, then add marinara sauce and simmer for 5 minutes.
07 - Spread a thin layer of tomato sauce in a 9x13-inch baking dish. Layer half the baked eggplant slices, half the mozzarella, a sprinkle of Parmesan, and basil leaves. Repeat layers, finishing with cheese and basil on top.
08 - Bake uncovered for 20 minutes until cheese melts and bubbles. Rest for 10 minutes before serving. Garnish with extra basil if desired.