In a large mixing bowl, add the rolled oats, protein powder, ground flaxseeds, chia seeds, and salt. Whisk together until well combined.

Add the peanut butter, agave, and vanilla extract to the dry ingredients. Stir until everything is well incorporated. The mixture should be thick and hold its shape when rolled into a ball.

If it’s too dry, add the rest of the agave or a little plant milk until it sticks together. If it's too sticky, add more oats or protein powder a tablespoon at a time.

Fold in the chocolate chunks and chopped nuts, then line a baking sheet with parchment paper or a silicone baking mat.

Using a small cookie scoop or a tablespoon, roll the mixture into 1-inch balls and place them on the prepared baking sheet.