Bring a large saucepan of lightly salted water to a boil. Add pasta and cook for 8 to 10 minutes or until al dente; drain.
While pasta is cooking, cook sausage and capsicum in large frypan over medium heat until sausage is brown and juices run clear. Drain sausage mixture and return it to the frypan. Pour in the stock, season with black pepper and bring to a boil.