Put sliced banana in the freezer for at least 4 hours until frozen. You can buy frozen bananas as well. If you want your acai bowl to be very thick and creamy, put the Greek yogurt in the freezer for at least half an hour as well.
Add blueberries, banana, blackberries, Greek yogurt, honey and acai powder to a high speed blender. Pulse on low power until it begins to blend together. You may need to unplug the blender and stir with a spoon a few times until it's totally smooth and well blended.
When you've reached your desired consistency, add the smoothie to a large bowl and garnish with your toppings of choice, then serve and enjoy!
NOTE: The nutritional info does not include any toppings