Prep Time: 10
Cook Time: 20
Serves: Serves: 16
Combine spinach, tomatoes, mayonnaise and sour cream in large bowl; mix well. Stir in 3 cups cheese.
Transfer mixture to 10-inch deep-dish pie plate or quiche dish; top with remaining cheese. Bake in preheated 350°F oven 20 minutes or until hot and cheese is melted. Serve with pita bread, bagel or tortilla chips.