In a shallow bowl, toss together the panko, cheese, garlic powder, and season generously with salt and pepper. Set aside.

In another shallow bowl, whisk the egg and set next to the breadcrumb mixture bowl. Place a baking sheet next to both the bowls.

Take an eggplant slice, dip in the egg, and roll in the breadcrumb mixture until covered and lay on the baking sheet. Repeat until all eggplant slices are breaded.

Transfer the coated eggplant to the air fryer and cook for 8 minutes or until browned and crispy.

Transfer the eggplant to a serving dish, garnish with sliced basil, red pepper flakes, and extra Parmesan cheese. Serve with marinara sauce.