Add kale, raspberries, mango, orange juice, lime juice, stevia and ice cubes to the jar of a blender with ice-crushing ability. Make sure the lid is on tight. Blend the ingredients until they are relatively smooth, scraping down the sides of the blender with a rubber spatula as needed, about 20 seconds. Pour into a glass and serve immediately.

If the drink is too thick for your blender, add more orange juice 1 tablespoon at a time.