Cook beef, onion and bell pepper in large skillet on medium-high heat 4 to 5 minutes or until beef is browned. Add oregano, rosemary and thyme; cook and stir until well mixed.
Stir in tomatoes, beef broth and tomato paste. Bring to boil. Stir in pasta. Reduce heat to medium; cover and cook 10 minutes or until pasta is tender. Sprinkle with mozzarella cheese; cover. Let stand 5 minutes or until cheese is melted.