Begin by freezing the mozzarella sticks for about 30 minutes. This will help prevent the cheese from oozing out during cooking.
In a shallow bowl, place the flour. In a second shallow bowl, whisk the eggs. In a third bowl, combine the breadcrumbs, garlic powder, Italian seasoning, and salt.
Take a frozen mozzarella stick and coat it in the flour, shaking off any excess.
Dip the floured mozzarella stick in the beaten eggs, ensuring it's fully coated.
Roll the mozzarella stick in the breadcrumb mixture, pressing gently to adhere the crumbs. Repeat this process for all the mozzarella sticks.
Preheat your air fryer to 400°F (200°C) for about 3 minutes.
Lightly spray the basket of the air fryer with cooking spray. Place the breaded mozzarella sticks in a single layer in the basket, ensuring they do not touch each other.
Cook in the air fryer for 6-8 minutes, or until golden brown and crispy. Shake the basket halfway through cooking to ensure even cooking.
Once cooked, remove the mozzarella sticks from the air fryer and let them cool slightly before serving.