Preheat oven to 400º F. Place apples, maple syrup, and butter in a 9x13" pan. Toss until apples are well coated. Roast, stirring occasionally until apples are crisp-tender, about 20 mins.
Meanwhile, whisk together yogurt, cinnamon and nutmeg. When apples are finished cooking, spoon into bowls, sprinkle with granola and top with yogurt. Serve and enjoy!