Protein balls

I am looking for a recipe for low calorie high protein balls which use very little or no protein powder. My protein powder is vegan and tastes disgusting in protein balls. I know I can use peanut butter and nuts and seeds but I do not want a super high fat protein ball. I was thinking of using peanut butter powder instead. Does anyone know any good recipes for a high protein snack that is low calorie but delicious?