Preheat oven to 350 degrees. Spray a deep dish 9-inch pie pan and 8-slice pie cutter with gluten free non-stick cooking spray. Whisk eggs, water, and oil together in a mixing bowl. Add the cake mix and continue to whisk until fully combined. Pour into the pie pan and insert the pie cutter.
Top the sections as desired. Bake for 25 minutes or until a toothpick inserted into the center of the cake comes out clean.
Nutrition facts will vary based on what you choose as your toppings.