Cool the pasta according to the instructions on the box.
Heat the oil in a pan and add the garlic, capsicum, and red chilli to saute for 2 to 3 minutes.
Add the zucchini and tomatoes and cook for a further 15 minutes. Add the mussels and stir them through the sauce and cover for another 5 to 7 minutes until the mussels have opened.
Season with black pepper and serve with pasta.
Mussels are now available cleaned and bearded and stored in vacuum packs. There's no mess and it saves a great deal of time.