Cut the cantaloupe in half. With a paring knife, closely peel the outer layer, until you are past the green flesh, into the orange flesh. Shave it closely, so you don't waste any. Scoop out the seeds with a spoon. Cut into chunks.
Peel the cucumber and cut lengthwise. Scoop out the seeds with a spoon. Cut into chunks.
Mix together in a blender, until smooth: spinach or mixed greens, chunks cantaloupe, cucumber, avocado, cashews, mint or basil, water or green tea, and ice if needed. Enjoy!