Preheat oven to 350 degrees. Spray a 13 x 9 pan with cooking spray.
In large bowl combine cake mix, butter, and 1 egg.
Mix until crumbly. Set aside 1 1/2 cups of crumbs for topping.
Press remaining crumbs in bottom of prepared pan. Bake 10 minutes.
Cut Peach slices into 1 inch pieces. You can use frozen or fresh peaches if you choose but I like canned for this particular recipe because of the short baking time.
Spoon into partially baked crust.
In large bowl combine cream cheese, sugar, 1 egg and vanilla extract. Beat with mixer until creamy.
Spoon over peaches. Sprinkle with reserved crumbs.
Bake 30 minutes. Chill at least 30 minutes before serving. Refrigerate leftovers.