In a large bowl, combine milk, sour cream, cream of mushroom and pepper. Add in potaotes, 1/2 of the cheese, 1/2 cup french-friend onions.
Pour the mix into a greased 9x13 casserole dish. Place the pork chops evenly on top.
Place in oven covered for 30 min. Pull out and sprinkle the rest of the cheese and onions on top and bake uncovered additonal 20 minutes or until pork is completely cooked.