In a Dutch oven, saute the onion, carrots, green pepper, celery and parsley in oil until vegetables are tender. Add the tomatoes, ketchup, brown sugar, lemon juice, vinegar, mustard, Worcestershire sauce, salt and pepper. Cover and simmer for 1-1/2 hours.
Meanwhile, soak bread in water; squeeze dry and crumble into a large bowl. Add the eggs, onion, parsley, salt and pepper. Crumble beef over mixture and mix well. Shape into eight patties.
Broil or pan-fry until a meat thermometer reads 160° and meat is no longer pink; drain. Add to sauce. Cover and simmer for 10 minutes or until heated through. Serve with rolls. Yield: 8 servings.