1. Combine the apple wedges and apple juice in a bowl. Stir well and set aside. Combine the flour, oats, sugar, cinnamon, and nutmeg in another bowl. Add margarine in with a pastry blender until mixed well.
2. Place apple mixture in a square baking dish (8-inch) coated with nonstick cooking spray (nonfat); pour flour mixture evenly over apple mixture. Cover and bake at 375 degrees for 25-30 minutes. Uncover and bake an additional 20-25 minutes.