In a large colander, thoroughly rinse and inspect mussels, discarding any cracked or open shells and making sure to debeard any mussels still holding on to one.
Cook pasta according to instructions on the box.
While pasta is cooking, place mussels in a large pot with a lid. Cover and turn on heat to high, watching until mussels have opened- approximately 3-5 minutes.
Remove from heat, drain any extra liquid out of the pot and discard any unopened shells.
Return pot to the stove on low to medium heat, add fra diavolo sauce and heat through.
To serve: add approximately 1 cup of cooked pasta to 3 bowls and distribute mussels and sauce.
Garnish with fresh basil or parsley.