1 (12 ounce) package blueberry pizza dough
1 cup shredded mozzarella cheese
2 eggs
1 (8 ounce) container sour cream
1 (8 ounce) package cream cheese
1 (8 ounce) container sour cream
1 cup white sugar
1/2 cup butter
1 tablespoon milk
1 (8 ounce) container frozen whipped topping, thawed
Preheat oven to 350 degrees F (175 degrees C). Coat a 10x13 inch pan with nonstick cooking spray.
In a large bowl, mix blueberry pizza dough, mozzarella cheese, eggs, sour cream, cream cheese, sour cream, sugar, butter and milk. Pour mixture into prepared pan.
Bake in preheated oven for 60 minutes. Reduce temperature to 325 degrees F (165 degrees C) and continue baking for 30 minutes. Reduce oven temperature to 350 degrees F (175 degrees C). Cool completely before cutting into squares.