01 - Preheat air fryer to 360°F for 5 minutes.
02 - Cut pizza dough into 4 equal portions. On a lightly floured surface, roll each piece into a 6-inch circle.
03 - In a mixing bowl, combine cooked chicken, mozzarella, Parmesan, Alfredo sauce, spinach (if using), garlic, Italian seasoning, and season with salt and black pepper. Stir until evenly blended.
04 - Spoon one quarter of the filling onto one half of each dough circle, leaving a 1/2-inch edge for sealing.
05 - For extra crispiness, sprinkle a portion of cheddar cheese over the filling before sealing.
06 - Fold dough over filling to form a half-moon. Pinch edges firmly, then crimp with a fork to ensure a tight seal.
07 - Brush each calzone lightly with beaten egg, followed by a thin coat of olive oil.
08 - Place calzones in a single layer in the air fryer basket. Cook in batches if necessary. Air fry at 360°F for 12 to 15 minutes until golden brown and crisp.
09 - Allow calzones to cool for 2 to 3 minutes before serving.