Slice the eggplant into sticks about 1/4-inch thick. Place on a paper towel, sprinkle with salt, and let sit for about 30 minutes.
Preheat your oven to 400°F (200°C) or air fryer to 375°F (190°C).
Combine the Italian seasoned breadcrumbs and Parmesan cheese in a mixing bowl. In another bowl, whisk the egg white until slightly frothy.
Pat the eggplant sticks dry, dip in the egg white, and roll in the breadcrumb mixture for an even coating.
Arrange the coated eggplant sticks on a baking sheet or in the air fryer basket. Spray lightly with oil spray.
Bake for 20-25 minutes, flipping halfway through, or air fry for 10-12 minutes, shaking the basket halfway through.
Serve hot with marinara sauce for dipping, if desired.