When it comes to green smoothies there are so many options so experiment and find what works for you. Here is a recipe that I regularly follow for a green smoothie. Because I am currently detoxing the parasite blastocystis hominis and candida and they lurrve any sugar and grains I do not add any fruit to mine apart from maybe some kefir coconut cream or water where the bacteria has consumed the sugars oh and avocado.
Here is my recipe.
A stalk of celery
1/2 small avocado or 1/4 of large avocado
Tablespoon of coconut oil
1/4 teaspoon of cinnamon and/or vanilla
A handful of lettuce or spinach
Coriander and/or mint
Coconut water kefir
Pinch of himalayan salt
There are many additions you could add including fruit, spirulina, chlorella, chia seeds, coconut cream kefir.
Put ingredients together in your blender and blend!!