Step 1

In a 3- or 4-qt. slow cooker, combine the first 10 ingredients. Cover and cook on low for 4 hours.

Step 2

Cook ziti according to the package directions. In a large bowl, combine egg, ricotta cheese, 1 cup mozzarella, Parmesan cheese, parsley, salt, pepper and 5 cups slow-cooked sauce. Drain ziti; stir into sauce mixture.

Step 3

Transfer to a 13x9-in. baking dish coated with cooking spray. Pour remaining sauce over top; sprinkle with remaining mozzarella cheese. Bake at 350° until bubbly, 20-25 minutes. If desired, garnish with additional parsley.