Preheat oven to 400 degrees F. Lightly oil a large oven-proof skillet or coat with nonstick spray.
To make the garlic butter topping, whisk together butter, Parmesan, parsley, garlic powder, oregano and salt in a small bowl; set aside.
Cut each of the 8 biscuits into fourths, making 32 pieces. Spread biscuits in a single layer onto the prepared skillet. Brush with garlic butter topping.
Top with pizza sauce, mozzarella, Parmesan and mini pepperonis.
Place into oven and bake until the cheese has melted, about 14-16 minutes.
Serve immediately, garnished with parsley, if desired.