In a bowl whisk together the flour, parsley flakes, oregano, cayenne pepper, paprika, black pepper, salt, garlic powder and Parmesan cheese. Spray a baking sheet with cooking spray. Dip the potato wedges in the butter and roll in the flour mixture or put flour mixture in a paper bag, add potato wedges and shake to cover. Arrange on sprayed baking sheet. Bake in preheated 400 degree oven for 20 minutes on each side turning once. (I spray the potatoes with a little cooking spray when I turn them).