Preheat oven to 400F, with rack on middle position.
In a large bowl, combine potatoes with 2 TB parmesan and the remaining ingredients, tossing until potato slices are completely coated with olive oil and seasonings.
Arrange potatoes into a single layer on large baking sheet. Sprinkle tops of potatoes evenly with remaining 2 TB parmesan.
Cover with foil and bake for 20 minutes. Uncover and bake 20-25 min more, or until potatoes are to desired tenderness and golden brown on top.