Peel the bananas, cut them in 2- to 3-inch chunks and place them in a freezer bag in the freezer for at least 6 hours. Remove and blend in a blender until smooth. Serve immediately, or freeze in an airtight container for at least 2 hours. Scoop and serve.
If you are not vegan you can add some milk while blending.
PS: Bananas and Mangos are good for an icecream base since they are creamy. The other fruits alone without a banana base will probably create some kind of a sorbet.
You can drizzle some honey on top and add some walnuts - the flavor is wonderful. According to the flavor of your icecream switch the topings. Just keep the topings healthy too. You can also add some chocolate chips once the icecream is smooth.
Ideas for toppings:
You can play around with the flavors and toppings. The other day I made some chunkey money style icecream by adding some milk while blending. Then mixed in some peanut butter and chocolate chips it was delicious (with banana base)
You can also try mixing several friuts together like frozen magos and frozen berries, blend or put into a food processor and 2 tablespoons honey while mixing and 1/4 cup water. Boom - amazing sorbet and it has a majestic color.