Preheat oven to 350ºF.
In a mixing bowl, combine softened cream cheese, sour cream, mayo, garlic, salt and pepper and mix well. Stir in spinach, artichokes, parmesan and mozzarella cheese until combined.
Spread mixture into baking dish.
Bake for 20 minutes or until bubbly.
Serve with tortilla chips, crackers or baguette slices.