01 - Preheat oven to 400°F. Line two large baking sheets with parchment paper.
02 - Arrange eggplant slices on a rack or tray, sprinkle with salt on both sides, and let rest for 20 minutes. Pat dry with paper towels to remove excess moisture.
03 - Place flour in one shallow bowl, beat eggs in a second bowl, and combine breadcrumbs, Parmesan cheese, oregano, garlic powder, and black pepper in a third bowl.
04 - Dredge each eggplant slice in flour, dip into beaten eggs, then coat thoroughly with the breadcrumb mixture.
05 - Arrange coated eggplant slices on prepared baking sheets, lightly brush or spray with olive oil, and bake for 20 minutes, flipping halfway through, 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 gently for 5 minutes.
07 - In a 9x13-inch baking dish, spread a thin layer of tomato sauce. Layer half the baked eggplant slices, followed by half the mozzarella, a sprinkle of Parmesan, and torn basil leaves. Repeat layers and finish with cheese and basil on top.
08 - Bake uncovered for 20 minutes until cheese is melted and bubbly. Allow to rest for 10 minutes before serving. Garnish with additional basil if desired.