The sweetener and nuts aren't necessary, just give it a richer flavor. You can just eave them out, unless you need something a little extra sweet.
chopped fresh ginger
water as needed
small handful spinach
sweetener (dates, stevia, etc.)
small handful of nuts of choice
Toss everything in a blender, along with enough water for your desired
constancy and to ease blending. Blend until smooth, but don't worry
about itty-bitty green carrot top pieces.