Spinach Protein Smoothie

I was recently turned on to adding frozen spinach to my smoothies by a trainer at my gym. The leaves get nicely macerated in the blender and release their mild sweetness. Other ingredients in what's also been known as the "garbage pail" smoothie include lite or unsweetened soy milk, soy protein powder, whole flax seed, fresh or frozen banana, frozen strawberries (T and I picked this summer), and spirulina powder. Occasional add-ins include: raw sunflower seeds, raw pumpkin seeds, fresh OJ or carrot juice, fresh apple, frozen blueberries, peanut or cashew butter, tahini, or a pinch of gomasio. NUM!