In a large bowl or food processor, combine rolled oats, protein powder, chia seeds, and flaxseed meal. Stir until well combined.

Add the nut butter mixture and honey (or maple syrup) to the dry mixture. Mix thoroughly until all the ingredients are evenly distributed. The mixture should be sticky and moldable.

If desired, incorporate any optional add-ins at this stage. Whether you prefer the added sweetness of chocolate chips or dried fruits or the crunch of nuts, feel free to experiment with different combinations to suit your taste.

Once the mixture is well combined, cover the bowl with plastic wrap or a lid and refrigerate for about 30 minutes. Chilling the mixture will make it easier to handle and shape into balls.

After the chilling period, remove the mixture from the refrigerator. Take a tablespoon-sized portion and roll it between your palms to form a ball. Repeat this process until you've used all the mixture.

If desired, roll the protein balls in unsweetened shredded coconut, gently pressing to adhere the coconut to the surface. This step adds a delightful texture and enhances the overall taste.

Place the protein balls on a baking sheet lined with parchment paper or a silicone mat. Allow them to set in the refrigerator for at least an hour or until firm.

Once the protein balls have hardened, transfer them to an airtight container. They can be stored in the refrigerator for up to two weeks, providing you with a convenient and healthy snack whenever you need an energy boost.