How to Make It
Combine first 4 ingredients in a 6-quart slow cooker; cook on HIGH 1 hour. (This wilts the greens to accommodate the remaining ingredients.)
Meanwhile, cook sausage in a medium skillet until browned; drain. Add sausage, onion, peppers, and salt to slow cooker. Cover and cook on LOW 5 to 6 hours. Serve with hot sauce, if desired.