turned out perfectly! the kids loved it and we finished off the pan in no time. i loved the mixture of the berries with the peaches and mango. while i thought the mixture was perfect, i can't wait to try this with a different combination. looks like i might have to buy more sprite!
put frozen fruit in a 9 x 13 baking dish. add dry cake mix over the top. pour soda slowly over the cake mix. do not stir. this will give you the "crust" for the cobbler. 