The great thing about this smoothie is that it is an excellent entry point to the world of green smoothies. Don’t worry about the spinach overpowering the flavor of other ingredients. The almond butter provides a rich nuttiness, which complements the cinnamon. And although the banana provides some sweetness, you may require more depending on your taste preferences. If you taste the smoothie and want it to be sweeter, feel free to add that optional tablespoon of maple syrup.