Technically yes, but I don't recommend it. Frozen mangoes are rarely sweet and ripe enough for this dessert. The only brand of frozen mango I've ever come across the might be good enough is the Philippine Brand, which I believe uses Manila mangoes as well. If you want to try it, make sure you taste the frozen mangoes first, and if it's not super sweet juicy and delicious, wait until mango season comes. It'll be worth the wait.