Simple and delicious! Made these for desert yesterday. Slice 2 bananas, peel a mango and slice into pieces, put everything in a plastic bag or box in the freezer for 2 hours. Put it in a mixer, preferably an ice crusher type, mix altogether, put in nice bowls and strew some berries, mint leaves or coconut flakes on top and done! No sugar, no preservatives, no colorants.
If you want it to be less sweet, because it will feel like a sugar bomb, you can always put some raspberries or strawberries in the mix. Served this after dinner and everyone was delighted.