01 - Line a baking sheet with parchment paper for freezing the cheese sticks.
02 - Slice mozzarella cheese into stick shapes if not pre-cut. Arrange sticks in a single layer on the prepared baking sheet.
03 - Freeze the arranged sticks for at least 1 hour until very firm. Freezing prevents cheese from leaking during baking.
04 - Preheat oven to 425°F. Place a wire rack on a second baking sheet and lightly coat with olive oil spray.
05 - Set up three shallow bowls: Bowl 1 with flour, Bowl 2 with whisked eggs and milk, Bowl 3 with panko, Italian breadcrumbs, garlic powder, oregano, basil, salt, and pepper mixed together.
06 - Working quickly with a few sticks at a time, coat each frozen mozzarella stick in flour, shaking off excess. Dip in egg mixture, then roll in breadcrumb mixture, pressing firmly to adhere. For extra crunch, repeat the egg and breadcrumb coating once more.
07 - Arrange breaded sticks on the prepared wire rack, spacing them apart to allow air circulation for even crisping.
08 - Generously spray the tops of all breaded sticks with olive oil spray to promote golden browning.
09 - Bake for 8-10 minutes, turning halfway through and spraying the other side with oil. Watch closely during the final minutes to prevent cheese from oozing out. Sticks should be golden and crisp.
10 - Let cool for 2 minutes before serving. This brief resting period allows the cheese to set slightly for better texture. Serve warm with marinara sauce.