Halve the avocado, remove the pit and scoop the flesh out of the skin. Slice the half banana into thin slices. Prepare the frozen cauliflower rice, almond butter, water or almond milk and optionally the protein powder for use.
Add the frozen cauliflower rice, avocado, tablespoon of almond butter and optional scoop of plant-based protein powder to a blender. Pour in the 200ml of water or almond milk. Turn on the blender and puree everything until smooth and thick, with no cauliflower pieces visible.
Pour the thick smoothie from the blender into a large bowl. Use a spatula to scrape out the blender thoroughly so nothing is left behind. Smooth the surface of the mixture in the bowl slightly.
Distribute the sliced banana pieces over the top of the smoothie. Sprinkle the tablespoon of hemp seeds evenly over it. Serve the bowl immediately while the contents are still cold.