Ingredients 6 tablespoons melted butter 6 tablespoons grated parmesan cheese 4 medium sweet potatoes Directions Preheat oven to 400 degrees. Pour melted margarine in 8x11 baking dish. Sprinkle Parmesan cheese over melted butter. Cut potatoes in half lengthwise and place cut side down over butter/cheese mixture. Bake for 30-35 mins or till tender.