Cook Spaghetti According To Package Directions. Meanwhile, In A Large Skillet, Cook Beef And Onion Over Medium Heat Until Meat Is No Longer Pink; Drain. Drain Spaghetti; Add To Beef Mixture. Stir In The Beans, Tomatoes, Mushrooms, Water, Chili Seasoning And Parmesan Cheese. Cover And Simmer For 10 Minutes. Sprinkle With Mozzarella Cheese.