The crab gravy would be served with an undressed pasta, usually spaghetti, though I always asked for angel hair.

WSJ: Endless-Summer Baked Blue Crab

The meatballs were added to the gravy and served with special pasta such as cavatelli, a small, hand-rolled shell pasta that was more expensive than spaghetti or penne and therefore reserved for special meals.

NPR: Savoring Memories of Sunday Dinner

Their pasta offerings include the especially popular pici, a thick spaghetti typical to the region.

BBC: Two days in Siena, Italy