This recipe is from the Don't Call Me Chef column.
If you prefer an icy-cold smoothie, freeze the orange segments at least two hours ahead of time.
Whizz up the oats till they become powdery. Then add the rest of the ingredients and blend till smooth.
* If you don’t have Greek yoghurt, wrap 3/4 cup regular yoghurt in cheese cloth and leave it over a bowl for the whey to drain. What will remain in the cheese cloth is thick, creamy yoghurt, just like Greek yoghurt.