Remove refrigerated pie crust from the package and allow it to sit at room temperature for 10-15 minutes.

Using a 3-inch cookie cutter, cut circles from the pie dough, aiming for about 12 circles.

Combine chopped chocolate bars, miniature marshmallows, and half of the crushed graham crackers in a bowl.

Place about a tablespoon of the chocolate-marshmallow mixture onto half of the dough circles.

Moisten the edges of each pie with water and press down around the edges with a fork to seal.

Brush melted salted butter over the tops of the hand pies and sprinkle remaining crushed graham crackers.

Preheat the air fryer to 350°F (175°C) and spray the basket with cooking spray.

Place a few hand pies in the air fryer basket in a single layer and air fry for about 10 minutes.

Once golden and fragrant, remove the hand pies from the air fryer and let them cool on a wire rack.