<human>:  What is the best way to make a green smoothie?
<bot>: The best way to make a green smoothie is to blend together a banana, some spinach or kale, a cup of liquid such as almond milk or coconut water, a tablespoon of nut butter or flaxseed oil, and a few ice cubes. You can also add in a few other nutrient-rich ingredients like avocado, flaxseeds, and chia seeds to maximize health benefits. Enjoy your green smoothie!