Combine the wet ingredients. In a large bowl, mix together the pumpkin puree, nut butter, honey, and vanilla extract until smooth and creamy.
Add the dry ingredients. Stir in the oats, protein powder, pumpkin pie spice, cinnamon, and salt. Mix until everything is evenly combined.
Adjust the texture. If the mixture feels too sticky, add a little more oats or protein powder. If it’s too dry, add a tablespoon of nut butter or pumpkin puree.
Form the balls. Using your hands or a cookie scoop, roll the mixture into 1-inch balls.
Chill and store. Place them in the fridge for about 20–30 minutes to firm up before enjoying.