In a mixing bowl, combine the softened cream cheese, sour cream, 1 cup of shredded mozzarella cheese, and ½ cup of grated parmesan cheese. Mix until well combined.
Spread the mixture into a baking dish.
Spread the pizza sauce over the cream cheese mixture.
Top with the remaining mozzarella cheese, parmesan cheese, and sliced pepperoni. Sprinkle with Italian seasoning.
Bake in the preheated oven for 20 minutes, or until the cheese is melted and bubbly.
Serve warm with breadsticks, crackers, or your favorite dippers.