In a large resealable plastic bag, combine the first four ingredients. Add pork chops, one at a time; toss to coat. Set remaining flour mixture aside. In a large skillet, saute chops in butter until golden brown; transfer to a greased 13-in x 9-in x 2-in baking dish. In the same skillet, saute the onion, green pepper and mushrooms until tender. Stir in reserved flour mixture; gradually add milk until blended. Bring flour mixture and milk to a boil; cook and stir for 2 minutes or until thickened. Remove from the heat; stir in lemon juice. Pour over chops. Cover and bake at 350 for 50-60 minutes or until meat is no longer pink.