Add frozen berries and banana to a blender and blend on low until small bits remain - see photo.
Add a bit of coconut or almond milk and protein powder (optional), and blend on low again, scraping down sides as needed, until the mixture reaches a soft serve consistency (see photo).
Scoop into 1-2 serving bowls (amount as original recipe is written // adjust if altering batch size) and top with desired toppings (optional). I prefer chia seeds, hemp seeds, and coconut, but strawberries, granola, and a nut or seed butter would be great here, too!
Best when fresh, though leftovers keep in the freezer for 1-2 weeks. Let thaw before enjoying.