In a large mixing bowl, whisk together rolled oats, protein powder, and chia seeds until mixed and fluffy.

In a separate bowl, combine canned pumpkin puree, pitted dates, almond butter, maple syrup, and cinnamon using a fork or hand mixer.

Pour the pumpkin mixture into the dry ingredients and mix thoroughly until cohesive.

Cover the bowl with plastic wrap and refrigerate the mixture for 15-20 minutes.

With damp hands, roll portions of the mixture into 1-inch balls.

Place the rolled balls on a parchment-lined plate and refrigerate for at least 30 minutes.

Transfer the Protein Balls into an airtight container for storage.