Dump canned peaches into a 9x13 inch baking pan and put your cake mix into a medium bowl.
Melt the butter and then add it to the cake mix and stir until combined. Cover the top of the peaches with the cake and butter mix. Sprinkle the top of the mixture with ground cinnamon, to taste.
Bake for 40 to 45 minutes until golden brown.
Allow cake to cool for about ten minutes. Add whipped cream on top and enjoy!