1. Spray a 9x13 baking dish with non-stick cooking spray.
2. Add sliced apples evenly.
3. Sprinkle cake mix evenly over apples.
4. Pour soda GENTLY over cake mix.
5. DO NOT MIX- Just pour slowly.
6. Bake at 350 degrees Fahrenheit, covered, for 30 minutes, and uncovered for 30 minutes.
7. I halved the recipe using only 3 apples, 1 box of Jiffy Mix cake mix, 6 oz of Diet 7-up and 9 pie pan! It was still wonderful!