01 - Preheat oven to 375°F.
02 - In a large mixing bowl, combine softened cream cheese, sour cream, and mayonnaise. Mix until smooth and creamy.
03 - Stir in mozzarella, Parmesan, spinach, artichoke hearts, garlic, salt, black pepper, and red pepper flakes until evenly distributed.
04 - Transfer mixture to an 8x8-inch baking dish and spread evenly across the surface.
05 - Bake for 25 minutes until bubbly and lightly golden on top.
06 - Serve immediately with tortilla chips, sliced baguette, or fresh vegetables.