Place chicken breasts flat on cutting board. With a sharp knife, slice each chicken breast from the side, cutting about ¾ the way through the chicken breast. Open up the chicken, exposing the insides of the breast.
Season all sides of the chicken with salt and pepper. Divide minced garlic between the 2 breasts and place in center of chicken. Lay ½ slice ham in the middle of each breast and top with ½ slice of Swiss cheese. Close up the chicken.
In a large bowl, combine the bread crumbs, thyme, tarragon, and parsley.
Place in chicken. Cover the chicken in bread crumbs, and then coat it in the beaten egg in another bowl. Place chicken back into bread crumbs.
Place chicken into the Basket of the air fryer set temp 375°F. Insert Probe into the largest of the breasts. Set Probe to 165°F. Shut basket and cook.
Once the internal temperature has reached 165°F. the unit will turn off.