preheat oven to 425 deg f. Melt butter in oven in a shallow 2 quart baking dish. Add salt, poppy seeds and pepper. Place potatoes (sliced 1/8" thick) in dish and toss to coat with butter. Bake 30 minutes, tossing twice during baking. Meanwhile, toss apple slices (slice apples 1/4" thick) in lemon juice and set aside. Add apples to potatoes and toss to mix. Bake for 10 minutes or until apples are tender. Serve hot. Dust with cinnamon, if desired and sprinkle with chopped parsley. Serve as a side dish with pork chops or chicken. Makes 4 servings.