Fry cut-up sausage in large crock-pot until almost done. Add onion and sauté till tender. Add broth, water and beans. Bring to boil and simmer 1 hour. Stir in tomato paste, bay leaf, oregano, basil, parsley and pepper. Boil gently for 30 minutes. Add macaroni, zucchini and veggies. Heat to boiling. Reduce heat and boil gently for 8 - 10 minutes. Discard bay leaf before serving. Sprinkle with parmesan cheese before serving
Variation: Sprinkle mozzarella cheese on top of soup once it has been ladled into bowls and broil till cheese is melting and bubbly.