Rinse and chop the spinach leaves.
Core and chop the apple into small pieces.
Pour the almond milk into the blender.
Add the chopped spinach, chopped apple, and chia seeds to the blender.
If desired, add a scoop of protein powder to the blender.
Put the lid on the blender and blend everything together until smooth and creamy.
Pour the green smoothie into a glass and enjoy!