Preheat your oven to 425°F. Line two baking sheets with parchment paper.
Sprinkle the sliced eggplant with salt and let it sit for about 30 minutes to draw out moisture. Rinse the eggplant slices under cold water and pat them dry with paper towels.
Set up a breading station: Place the flour in one shallow dish, beat the eggs in a second dish, and combine the breadcrumbs, garlic powder, onion powder, oregano, black pepper, and Parmesan cheese in a third dish.
Dredge each eggplant slice in flour, shaking off the excess. Dip it into the beaten eggs, then coat it with the breadcrumb mixture, pressing gently to adhere.
Arrange the breaded eggplant slices in a single layer on the prepared baking sheets. Lightly spray or drizzle with olive oil.
Bake for 25-30 minutes, flipping halfway through, until the eggplant is golden brown and crispy.
Serve warm as a side dish or appetizer.