1In Dutch oven, cook beef, onion, bell peppers and garlic over medium heat 8 to 10 minutes, stirring occasionally, until beef is brown and onion is tender; drain.
2Stir in water, diced tomatoes and tomato paste. Stir in pasta, brown sugar, Italian seasoning and pepper. Heat to boiling. Reduce heat; cover and simmer about 10 minutes, stirring occasionally, until pasta is tender.
3Set oven control to broil. Pour hot soup into 6 ovenproof soup bowls or casseroles. Top each with 1/4 cup croutons. Sprinkle with cheese. Broil soup with tops 3 to 4 inches from heat 1 to 2 minutes or until cheese is melted.