Slice the eggplant into 1/4 inch rounds and arrange them in a colander or on a baking sheet, then sprinkle salt over the slices and let them rest for at least 15 minutes.
Heat your air fryer to 370°F to get it ready for cooking.
Whisk the egg in a shallow dish and in another bowl combine the Italian breadcrumbs, grated Parmesan, garlic powder, and basil.
Dip each eggplant slice first into the egg, ensuring it’s coated, then press it into the breadcrumb mixture to cover it evenly.
Place the coated eggplant slices in the air fryer basket in a single layer, making sure they don’t overlap, and cook for 8 to 10 minutes, giving them a spray of oil and flipping halfway through cooking.
Spoon a teaspoon of marinara sauce onto each cooked slice and sprinkle shredded mozzarella on top.
Put the basket back in the air fryer and cook for an additional 1 minute, then turn off the air fryer and let the cheese melt on the eggplant for another minute before serving.