Best Appetizer. This warm, creamy, cheesy dip appears frequently at staff gatherings. People make it time and again because it's tasty and a snap to prepare. Assemble up to two days ahead, and bake just before serving.
5 1/2 cups (serving size: 1/4 cup dip and about 6 chips)
Preheat oven to 350°. Combine 1 1/2 cups mozzarella, sour cream, 2 tablespoons Parmesan, and next 6 ingredients (through spinach) in a large bowl; stir until well blended. Spoon mixture into a 1 1/2-quart baking dish. Sprinkle with remaining 1/2 cup mozzarella and remaining 2 tablespoons Parmesan. Bake at 350° for 30 minutes or until bubbly and golden brown. Serve with tortilla chips.