Creating Peach Cobbler Dump Cake is simple when you follow these easy steps:

1. Preheat Oven: Preheat your oven to 350°F (175°C).
2. Prepare Baking Dish: Grease a 9×13-inch baking dish with cooking spray or butter.
3. Layer Peaches: Spread the sliced peaches evenly across the bottom of the prepared baking dish.
4. Add Sugar: Sprinkle the granulated sugar evenly over the peaches. Add lemon juice and cinnamon if desired, then mix gently.
5. Sprinkle Cake Mix: Evenly sprinkle the dry yellow cake mix over the peach layer, covering it entirely.
6. Pour Butter: Drizzle the melted butter evenly over the cake mix, ensuring all parts are saturated.
7. Bake: Place the dish in the preheated oven and bake for 45-50 minutes or until the top is golden brown and bubbly.
8. Cool: Remove from the oven and let it cool for about 10 minutes before serving.

This straightforward process ensures you’ll have a delicious dessert ready in no time!