Preheat oven to 375° degrees. Spray 9x13 baking dish with non-stick cooking spray.
In large bowl combine: chicken, Hunt's Petite Diced Tomatoes, cream cheese, baby spinach, 1 cup mozzarella and parmesan. Stir to combine.
Mix together with cooked Ziti noodles.
Spread into prepared 9x13 baking dish. Top with remaining 1 cup mozzarella cheese.
Bake approximately 20 minutes or until cheese has melted. Broil 1-2 minute if browned cheese is desired on top.
