Flatten chicken breasts using a meat mallet or rolling pin until thin.

Place one slice of mozzarella cheese and one slice of baked ham on each flattened chicken breast.

Roll the chicken breast tightly, enclosing the cheese and ham.

Secure the roll with a toothpick.

Dip each rolled chicken breast into melted butter.

Roll the buttered chicken breast in a mixture of grated Parmesan cheese and bread crumbs, ensuring even coating.

Place the coated chicken breasts in a glass baking dish.

Bake in a preheated oven at 350°F (175°C) for 35 to 40 minutes, or until the chicken is cooked through and the cheese is melted.