Preheat oven to 350 degrees F.
Spray a baking dish with olive oil spray.
In a shallow dish combine cashew or almond meal, Parmesan cheese and seasonings.
Pound the chicken breasts until they are about ¼ thick. (It's best if you place the chicken breasts between 2 sheets of parchment paper or plastic wrap so that the chicken doesn't splatter)
Place 1 piece of mozzarella cheese and 8 pieces of pepperoni in the center of each pounded out chicken breast.
Roll up each chicken breast. You can secure the rolls with a toothpick if needed.
Brush melted butter on each rolled chicken breast.
Dip each chicken roll in the cashew meal mixture until it's well coated.
Place the chicken rolls into the baking dish.
Bake at 350 for 45 minutes (should be at least 165 degrees F)