Spread the butter and sprinkle Parmesan cheese on one side of each of the first four slices of bread. Place butter side down on a preheated skillet or griddle.

Put one slice of all four of the cheeses on each buttered slice of bread.

Butter and sprinkle Parmesan cheese on the last four slices of bread and place it butter side up on top of the cheese slices.

Grill till light brown and the cheeses are melted.