Protein in my green smoothies!

I was mixing some black bean brownie batter in my blender, when I realized it would be much easier if I didn't have to bake them!
I tried making a cocoa-banana-vanilla bean smoothie, and it was DELICIOUS, creamy and silky.
I've been adding half a cup of cooked beans ever since! protein and insoluble fiber, what could be better! You can use navy beans if you don't want to see the color.