Heat the oil in a large saucepan over medium heat. Add onion and garlic; cook 5 minutes or until tender, stirring frequently. Increase heat to medium-high. Add turkey, and cook 4 minutes or until turkey is browned, stirring to crumble. Add oregano and next 7 ingredients (oregano through tomato sauce); bring to a boil. Reduce heat, and simmer 10 minutes. Stir in pasta; cook 2 minutes or until thoroughly heated. Sprinkle with cheese.