Combine first 3 ingredients in a large bowl; stir until well-blended. Gently fold in the whipped topping.
Note: You can also serve this as a frozen dessert. Spoon into a 13 x 9-inch baking dish; cover with plastic wrap and freeze.
An easy make-ahead frozen dessert for a crowd. But not special enough that I expect to make it again.
This is always a huge hit with my family & friends. Great summer dessert!