Prepare baking tray for the air fryer by spraying lightly with cooking oil.
Set aside three shallow bowls.
Cut into the thickest part of the chicken breast to create a pocket.
Roll together a slice of cheese and ham, and stuff inside the pocket.
Repeat for remaining chicken breasts.
Season chicken with salt, pepper, and paprika.
Into your first shallow bowl, pour in flour.
Into the second shallow bowl, beat the eggs and milk.
Put the breadcrumbs into the third shallow bowl.
Dredge a stuffed chicken breast in the flour.
Dip into the egg mixture.
Then, roll in the breadcrumbs.
Place onto a plate.
Repeat with remaining chicken breasts.
Cover dish with saran wrap and place in fridge for about 20 minutes to help breading stick to chicken.
Preheat air fryer oven to 400°F on airfry mode.
Place chicken breasts onto lightly greased air fryer baking pan.
Bake for about 18 to 20 minutes or until done.