Remove stems from collard greens. Wash and pat dry; cut crosswise into 1-inch-wide strips.
Cook the sausage in a large Dutch oven over medium heat until browned. Remove sausage from pan with a slotted spoon, reserving sausage drippings. Add onion and garlic to drippings in pan, and sauté for 5 minutes or until tender. Add greens, sausage, and broth, and bring to a boil. Cover, reduce heat, and simmer 25 minutes or until greens are tender. Add beans and pepper, and cook 10 minutes. Place pasta in each of 6 large bowls, and top with broth mixture.