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