Sausage Bean Soup

3/4 pound bulk Italian sausage
1/2 cup chopped onion
1 garlic clove, minced
1 can (15-1/2 ounces) butter beans, rinsed and drained
1 can (15 ounces) black beans, rinsed and drained
1 can (14-1/2 ounces) diced tomatoes, undrained
1 can (14-1/2 ounces) beef broth
1 tablespoon minced fresh basil or 1 teaspoon dried basil
2 tablespoons shredded Parmesan cheese

In a large saucepan, cook sausage, onion and garlic until the sausage is browned; drain. Add beans, tomatoes, broth and basil. Cover and simmer for 10 minutes. Sprinkle each serving with Parmesan cheese. Makes 4-6 servings.