Preheat oven to 350°F. Cut apple slices crosswise in half Put apple slices (or other fruit) at the bottom of a pan that has been coated with non-stick spray. Sprinkle with dry cake mix.
In small bowl, combine sugar & cinnamon and sprinkle over cake mix. Pour melted butter over the fruit and dry cake mix. Bake at 350* for approximately 35-45 minutes -- it's done when it is nice and bubbly and golden brown.