In a large blender, add spinach, pineapple, mango, and bananas. Top with coconut and ginger.
Pour in milk and orange juice until ingredients are mostly covered. If specified ingredients do not provide enough liquid to cover, add more orange juice or add some coconut water to bring to desired level.
Blend on high until all consistency is smooth, with no frozen chunks or spinach leaves visible, and the smoothie is mint green in color.
Pour into glasses and serve immediately!
As with most smoothie recipes, ingredients here are very flexible, and the measurements are approximate. Typically, we do not measure the ingredients when making this smoothie, and it can be made without the mango and the coconut, if you do not have them at hand. Coconut water is a great addition to the liquid in this smoothie, if you like a more coconut-forward flavor, and vanilla protein powder fits in nicely if you're looking for a post-workout beverage.