01 - Line a baking sheet with parchment paper and set aside.
02 - Arrange mozzarella sticks on the sheet and freeze for at least 30 minutes until firm.
03 - Whisk eggs and milk together in a shallow mixing bowl.
04 - In another bowl, combine Italian breadcrumbs, panko, garlic powder, dried oregano, dried basil, salt, black pepper, and Parmesan cheese.
05 - Dip each frozen mozzarella stick into the egg mixture, then coat fully in the breadcrumb mixture, pressing to adhere.
06 - Repeat dipping in egg and breadcrumbs for a double layer to maximize crispness.
07 - Return breaded sticks to the parchment-lined tray and freeze for an additional 20 minutes.
08 - Set air fryer to 400°F and allow to preheat.
09 - Lightly coat air fryer basket with nonstick spray.
10 - Place cheese sticks in a single layer in the basket, ensuring they do not touch.
11 - Lightly spray tops of sticks with oil.
12 - Cook for 6 to 8 minutes, turning halfway through, until coating is golden and crisp.
13 - Serve immediately with warm marinara sauce for dipping.