Great dessert!

peel 2 sweet potatoes and slice thin. Peel and slice 2 tart apples....very thin. Toss with 1 tbsp walnut oil, and spinkle with cinnamon and a little mace or nutmeg. Spray a glass square pan with cooking spray. Pit mixture in pan. COVER and bake at 400 for an hour....let cool. Serve with greek yogurt....kids love it, it tastes like cheating!