I like to layer the ingredients in my blender like this: oats, frozen berries, bananas, cinnamon and maple syrup, almond milk. I find that it blends the oats more thoroughly that way. Sometimes I add 1/2 a tablespoon of flax seeds in with the oats. Enjoy.
Source of recipe: I am obsessed with oat smoothies: Oat + Banana, Oat + Almond, you name it. As the weather's been getting warmer and I've been biking and running more, I've been wanting a breakfast that really gets me going. So, here's the SUPER BASIC smoothie I've been obsessed with!