Prepare pasta according to package directions; drain. Brown beef in large skillet, drain and set aside.
Preheat oven to 350-o F. In skillet, saute onion and garlic in oil. Return beef to skillet and add tomatoes, oregano and parsley. Simmer 10 minutes. Add pasta and 1 cup of cheese to simmering tomato mixture; stir. Cover mixture with remaining cheese. Bake for 30 minutes or until top is crispy.