Preheat the Oven: Preheat your oven to 375°F (190°C) and line a baking sheet with parchment paper or lightly grease it.
Prepare the Mixture: In a large bowl, mix together the shredded mozzarella cheese and softened cream cheese. Microwave for about 30 seconds, then stir until the mixture is smooth.
Add Eggs: Add the eggs to the cheese mixture and mix until well combined.
Incorporate Dry Ingredients: Add the almond flour, baking powder, garlic powder, dried oregano, salt, and black pepper. Mix until a dough forms.
Add Pepperoni and Parmesan (Optional): Fold in the mini pepperoni slices and grated Parmesan cheese, if using.
Shape the Puffs: Use a small cookie scoop or tablespoon to drop dough onto the prepared baking sheet, spacing them about 1 inch apart.
Bake: Bake for 12-15 minutes, or until the puffs are golden brown and set.
Cool: Let the pizza puffs cool on the baking sheet for a few minutes before serving.