In a food processor, combine the matcha powder, Medjool dates, choice of nuts, rolled oats, and coconut flakes. Pulse the mixture until well combined and form a sticky dough, about 30 seconds.

Check the consistency of the mixture; it should hold together when pressed. If too loose, drizzle in water gradually, mixing until a sticky yet manageable dough forms.

Scoop out approximately one tablespoon of the mixture and roll into a ball, about 1 inch in diameter. Repeat with the remaining mixture, creating around 12-15 balls.

Place the rolled energy balls onto a baking sheet lined with parchment paper and refrigerate for at least 30 minutes to firm up.

Transfer the chilled energy balls to an airtight container. Store in the refrigerator for up to two weeks, or freeze for longer storage.