Add the spinach to the blender first so it blends smoothly without clumping.
Add mango, pineapple, and banana slices on top of the spinach.
Pour in the coconut water, then add the Greek yogurt and chia seeds.
Add the ice cubes last to help keep the smoothie chilled and thick.
Blend on high speed for 1–2 minutes, or until completely smooth and creamy.
Check the texture—if it’s too thick, add a splash more coconut water and blend again.
Taste and adjust by adding a little honey if more sweetness is desired.
Pour into a glass and enjoy immediately while cold and fresh.