Add ziti and water to skillet and bring to a simmer. Cook, stirring so pasta doesn’t stick to bottom of skillet, until well combined, about 2 minutes. Remove skillet from heat, then fold in half ...

Stir the sauce, 1 cup mozzarella cheese and ziti in a large bowl. Spoon the mixture into a 2-quart shallow baking dish. Sprinkle with the remaining mozzarella cheese and Parmesan cheese.