- In a bowl, combine all of the ingredients. Let marinate for 15 minutes. Drain.
- Meanwhile, in another bowl, combine all of the ingredients.
- On a work surface, cut the submarine buns in half horizontally without going all the way through to the other side. Open like a book and cover the insides with the chimichurri and red pepper spread. Layer in the capocollo, chorizo, zucchini and arugula. Cut the subs in half, if desired.