In a blender, combine all ingredients, except chia seeds and 1/4 cup of pistachios. Leave chia seeds and 1/4 cup pistachios off to the side.
Blend for about 30 seconds, spinach breaks down and everything is smoothly blended. Set aside
Evenly distribute liquid from blender into jar with chia seeds. Make sure each jar has equal amount of liquid
Evenly distribute chia seeds in 4 small mason jars or containers. Each jar will have 2 tbsp of chia seeds.
Place lid on jar and shake. You can stir with a spoon as well if you do not have jars with lids
Place in fridge for at least 20 minutes. But the longer the better
You may want to stir or shake chia pudding jars once or twice while they are thickening to distribute chia seeds more evenly
Once chia pudding has thickened, remove from fridge
Top with remaining pistachios
Top with vegan whipped cream if desired
Serve and Enjoy!