If limited to fast food options, the McD's fish sandwich is my preference and I believe we have a whole topic devoted to it.
Getting back to lunch, today I made the black linguine with squid and spicy sausage from Diana Henry's Simple.
Not a fan of this particular brand of pasta. It was very brittle coming out of the bag and continued to break during cooking. Also rather expensive. Never occurred to me to cook squid with spicy sausage but it was interesting.