Here's a simple and fast pasta dish with capers that can go with pretty much anything. It can easily be vegetarian if you omit the anchovy, and even vegan, depending on the pasta that you use.
This is traditionally made with spaghetti, but I like to use short pasta like shells or the lumaconi shown here so the capers don't all sink to the bottom of the dish.
Here's an oddball with something of a pedigree. It's named for the Clover Club of Philadelphia, a private gentlemen's club that served that city's captains of industry from the late 1800s up to about the time of Prohibition.
Here's a superfast one-pan recipe for swordfish. 
There's no turkey in this dish! Cape Cod Turkey is a classic 18th-19th Century New England fish dish made with fresh or salt cod and dressed with white sauce and hard-boiled egg. It's a close relative of the smokey
Here's another classic Sicilian presentation of their beloved swordfish, this one "for the glutton"! 
This is a simple, homey dish, and a good combination for a ribsticking winter lunch.
Here's an easy potato dish when you want something lighter than a scalloped potatoes and more interesting than
This simple and flavorful recipe works with any white fish, including halibut and swordfish. It's great for a weeknight because it's easy, and while it's not as quick as some other recipes, you don't have to hang over the pan the whole time.
This is a really old classic, from not long after the American Civil War.
This pasta dish is characterized by the inclusion of a fresh chili pepper in a simple sauce of tomatoes cooked in garlic-scented oil. Arrabbiata is an Italian word for angry; that's the chili pepper. Naturally depending upon your tolerance for angry tomatoes, you can add as much chili pepper as you like. This version is quite mild, with just the taste of the pepper and very little heat.
This is another of those dishes that you see more often in American restaurants than in Italian ones, but this one is authentically Sicilian, as Marsala wine comes from Marsala town on the western tip of Sicily.
This is a humble classic dish of Piedmont and Valle d'Aosta, in the mountainous northwestern corner of Italy.