Preheat your oven to 350°F (180°C). In a large mixing bowl, combine the softened cream cheese, mayonnaise, sour cream, Parmesan, mozzarella, minced garlic, salt, and pepper. Mix until well blended.
Transfer the mixture to a baking dish. Bake in the preheated oven for 20-25 minutes, or until the top starts turning golden and it's bubbly. Allow the dip to cool for a few minutes before serving with tortilla chips.