Mustard Greens in Green Shakes and Banana Milk

~If you try mustard greens in your green shakes, do you find that it gets spicier after it sits? It's already a little on the spicy side, to me anyway. It was really good though, until I let it sit for a while in the frig.
~Have you ever tried blending a banana in some water and putting it in your raw oats? Let it sit for a bit. It tastes like banana milk! Add some nuts and it is so good.