Marvelous Minestrone Soup

Name: Marvelous Minestrone Soup
Ingredients: 1 tablespoon olive oil; 1 large onion (for about 1 cup chopped); 2 celery ribs (for about 1/2 cup chopped); 10 peeled baby carrots (for about 1/2 cup thinly sliced); 1⁄2 lb fresh green beans (for about 1 cup cut); 2 (14 ounce) cans fat-free chicken broth; 1 (14 ounce) can nonfat beef broth; 1 (14 1/2 ounce) can stewed tomatoes; 1 (8 ounce) can tomato sauce; 1 (15 -19 ounce) can cannellini beans; 1⁄2 cup uncooked orzo pasta; 1 1⁄2 teaspoons dried Italian seasoning; 1 teaspoon bottled minced garlic; salt and pepper, to taste; 6 tablespoons grated parmesan cheese