Roast sausage in 350 degree oven. Pierce to allow fat to escape. Cool. Slice into 1/4" thick circles. Chop and sauté until soft. Add remaining ingredients. (Do not drain tomatoes). Simmer 45 minutes. Cool. Skim off excess grease (if any). Cook pasta according to directions. Reheat soup and add sausage and pasta together. Sprinkle with parmesan just before serving.