This frozen treat makes a simple and refreshing dessert similar to ice cream. This recipe is topped with frozen blueberries, but any fresh or frozen fruit would make a great topping. A sprinkling of your favorite nuts or seeds would also be a great addition. You can also add cocoa powder for a chocolate banana flavor. Put peeled and quartered bananas in a freezer bag and keep them on hand in your freezer so that they are at the ready to make this delicious dessert when you want it. This is a great way to extend the life of bananas that are reaching their prime and satisfy your sweet tooth all at the same time.