This is a project recipe, to be sure. But the result? An impressive, delectable mountain of perfectly cooked pasta, tender meatballs, egg and salami, swathed in a rich ragu and folded all together in a lissome dough. It is an excavation to eat this, and one to be undertaken slowly, carefully, so as to catch every prism of flavor. The vivid compliments given to this in the film “Big Night” are unrepeatable here, but we are sure you’ll find some choice adjectives of your own. (The New York…