01 - Preheat air fryer to 360°F for 5 minutes.
02 - Divide pizza dough into 4 equal portions. Roll each piece into a 6-inch circle on a lightly floured surface.
03 - Combine cooked chicken, mozzarella, Parmesan, Alfredo sauce, optional spinach, garlic, Italian seasoning, salt, and pepper in a mixing bowl. Stir until evenly mixed.
04 - Spoon a quarter of the filling onto half of each dough circle, leaving a 1/2-inch margin at the edge.
05 - Sprinkle shredded cheddar cheese over the filling if a cheesier crust is desired.
06 - Fold dough over filling to create a half-moon. Pinch edges to seal, then crimp with a fork for a secure closure.
07 - Brush tops of calzones with beaten egg and drizzle or brush with olive oil for extra crispiness.
08 - Arrange calzones in the air fryer basket in a single layer. Cook in batches if necessary.
09 - Air fry at 360°F for 12 to 15 minutes until golden brown and crisp.
10 - Allow calzones to cool for 2 to 3 minutes before serving.