1. In a large skillet, cook beef over medium heat until no longer pink; drain.
2. Transfer to a 5-qt. slow cooker. Stir in the tomatoes, tomato paste, broth, brown sugar and seasonings. Cover and cook on low for 6-8 hours or until bubbly. Discard bay leaf. Serve with spaghetti. Yield: 12-14 servings.