Combine all ingredients in a food processor. Pulse until nuts and dates are finely chopped and mixture is blended together. (If all ingredients are not blending together completely, just pulse until nuts and dates are chopped and then remove the blade and continue mixing by hand.)
[If using nut butter in place of walnuts and honey or maple syrup in place of the dates, you can skip the food processor and just combine all ingredients in a large bowl.]
Spoon one tablespoon of mixture at a time into the palm of your hands and roll into a ball. Place energy bites on a baking sheet and freeze for at least 30 minutes until oats have softened and mixture has had time to meld together. Remove and enjoy!
[Energy bites can be stored in the refrigerator or freezer.]