Preheat oven to 350 deg. Grease 8 inchx8 inchx2 inch baking dish, or 2.5 quart baking dish. Cut apples and potatoes in chunks. Grate in food processor fitted with grater blade. Transfer to large bowl and stir in lemon juice. Change to steel chopping blade (no need to wash bowl). Cut carrots and lemon into chunks and chop finely. Add to apple potato mixture. Stir in raisins, 3 tablespoons of melted margarine, orange juice concentrate, salt, cinnamon, sugar and matzo meal and mix well. Transfer to prepared baking dish and drizzle remaining margarine over. Bake in preheated oven for 1 hour or until browned and firm in center. Makes 8 to 10 servings. NOTE: For pancakes,drop spoonfuls of mixture into 1 cm deep hot oil. Flatten slightly and fry until crisp and browned on both sides. ~-