In a large saucepan, brown sausage, breaking into small pieces as it cooks. Add onion and sauté until tender. Drain fat. Add vegetables, chicken broth, parsley, and basil. Bring soup to boil; stir well. Cook over moderate heat 15 minutes. Stir in orzo and salt and pepper to taste. Reduce heat to low; simmer covered 20 minutes or until orzo is tender. Servings: 4