Spinach and Artichoke Chicken Penne

2 chicken breasts, cooked and chopped
1 can artichoke hearts, chopped
1/2 cup sour cream
8 oz cream cheese
1 packet ranch dressing seasoning
2 1/2 cups penne, prepare as directed on box
1/4 cup milk
2 cups mozzarella shredded
1/2 cup Parmesan cheese, grated
1 package frozen spinach, thawed and drained

Instructions:
Preheat oven to 375*
Spray 9x13 baking dish with non-stick
Combine all ingredients and pour into baking dish
Cover with tinfoil and bake 20-25 minutes.
Remove tinfoil and place under broiler to brown cheese

Makes 6 to 8 servings.