Pour butter into a 15-1/2-in. x 10-1/2-in. x 1-in. baking pan. In a plastic bag, combine flour, cheese, salt and pepper. Shake a few potato slices at a time in the bag to coat with the flour mixture. Place potatoes in a single layer over the butter. Bake at 375° for 30 minutes. Turn slices and sprinkle with Italian seasoning. Bake 30 minutes more or until tender.