1Cook beef and onion in 4-quart Dutch oven over medium heat, stirring occasionally, until beef is brown; drain.
2Stir in Sauce Mix, water, basil, pepper and garlic. Heat to boiling, stirring frequently; reduce heat. Cover and simmer 10 minutes, stirring occasionally.
3Stir in Pasta and mushrooms. Heat to boiling; reduce heat. Cover and simmer 10 minutes. Sprinkle with parsley.