Parmesan Bow-tie Skillet

3 cups bow-tie pasta - cooked and drained
1 jar (14 oz) spaghetti sauce
1/2 cup ricotta cheese
1 cup shredded mozzarella cheese, divided
1/4 cup grated parmesan cheese, divided

Combine pasta, spaghetti sauce, ricotta cheese, 1/2 cup of mozzarella and 2 Tbsp parmesan in a large skillet or large saucepan.
Cook on meduim heat 10 min. or until heated through,stirring occasionally.
Remove from heat.  Sprinkle with remaining 1/2 cup mozzarella cheese adn 2 Tbsp. parmesan cheese.
Cover and let stand 5 min. or until cheese is melted.

You can add chicken to it if you need a little more substance.