Wash and dry the carrots. Peel the oranges and divide into sections. Wash and dry the apple and cut into chunks.
Add the carrots, oranges, and apple to the blender, blend until smooth. At this point the 1/2 cup of orange juice can be added, later on, you can more orange juice if the smoothie is too thick.
Add the banana and blend until smooth. Add a small amount of ginger and taste, add more if needed.
Serve immediately.
Notes
The ginger goes a long way, so add a small amount and taste, if you need more gradually add a little more.