Cook the pasta according to its box. Al dente is good.
While the pasta cooks, brown the ground beef in a pan. Drain the oil. Add the spaghetti sauce, 2 tbsp of sugar and sprinkle of Italian seasoning. Stir everything together. Cover and simmer, opening it occasionally to stir. Let it simmer for about 10-15 minutes or so.
Preheat the oven to 365°.
Transfer the cooked penne(sans the water) into the pasta sauce pan. Stir, then add 3/4 cup of shredded mozzarella cheese. Incorporate the cheese by stirring it again. Transfer the whole thing into a baking pan. Top it with the remaining 1 cup mozzarella cheese, evenly.
Stick it in the oven and bake for about 10-15 minutes or until the cheese has melted.
