01 - Add strawberries, banana, Greek yogurt, milk, and sweetener, if using, to a blender jug.
02 - Include ice cubes if you desire a thicker, colder drink.
03 - Blend everything on high speed for approximately 45 seconds until completely smooth and creamy.
04 - Taste the mixture and adjust with additional sweetener if preferred.
05 - Pour the smoothie into glasses and serve without delay.