Tomato Basil Orzo Soup with Sausage

In a large pot, heat the olive oil. Add the onion, carrot, celery and garlic. Saute for about 5 minutes, until starting to soften. Add the tomatoes and broth. Bring to a boil. Reduce heat and let simmer for about 10 minutes. If adding sausage, cook in a separate pan until almost no longer pink. Then add to soup. Add the orzo, cover again and let it simmer until the orzo is tender. If the soup is too dry after the orzo is cooked, add more broth or water. Season with salt and pepper to taste. When serving, top with fresh basil and parmesan cheese.