Mango/peach smoothie

My co-worker is a vegan and she suggested this smoothie:

frozen bananas
frozen peaches or mangoes
vanilla extract
honey

For 2 ppl: add water to 4 cup line in blender and blend. I've never tried smoothies sans milk, so this will be interesting. Once we unpack everything (including our new blender/food processor), this will definitely be on the list to break in the blender. This ought to be a good breakfast item as well!