Pour all ingredients into your blender and blend for 50-60 seconds or until smooth.
Serve immediately.
Notes
You can make a vegan version by using a plant based yogurt like almond, soy, oats or (soy) coconut. If you love coconut and want to intensify the flavor, coconut yogurt would be a great idea.
If you want a less filling and thinner smoothie, leave out the oats.
To make into a smoothie bowl: Adjust the amount of milk to make a smoothie bowl (use only ¾ cup of milk or more yogurt) or to make a thinner smoothie.