Preheat the oven to 350 F.
Mix together the apples and spices and put into an oven safe dish.
Combine the oats, peanut butter, nuts, and another dash of cinnamon and sprinkle over the apple mixture.
Sprinkle over the apple mixture and bake for 45 to 50 minutes, until the apples are soft.
Top with 2 oz plain yogurt, and sprinkle with more cinnamon.