Add all the ingredients to a blender along with your choice of protein. Add more milk as needed and use the tamper (if your blender has one).
Blend until your desired consistency is reached. This smoothie is best enjoyed immediately.
Notes
If your blender isn't very powerful, slice your banana into coins before freezing. This way your blender doesn't have to do as much work to break it down.Make It Your Way: Substitutions & VariationsNo strawberries? - sub another berry such as blackberry, raspberry, or blueberry.No banana? - you can either replace it with 1 cup of frozen mango, frozen pineapple, or 1 frozen avocado (pitted, skin removed, and cut into slices before freezing).