Some foods are supposed to taste best in winter. My mother would put in this group rather hearty things, like salsiccia (sausage) with beans, or polenta (which she only serves with rich, tasty toppings, like ragu, known here as the sauce in spaghetti bolognaise). Further north, in Lombardy, people think of brasato, slow-cooked beef, as typically wintry. Choucroute alasacienne (sausage and sauerkraut) feels the same way.
Salsiccia, along with a number of other pork products like zampone and cotechino, does not keep very long. Pigs were traditionally slaughtered in December, probably because by December fodder was scarce and, in a world without refrigerators, the cold afforded more time to cure the meat or eat it fresh.
Nowadays, we can pretty much get any vegetable or fruit at any time of the year. It is great that food transportation enables South-American farmers to get some crumbs from the table of North-American affluence. Of course, this produce has to travel long distances and be stored, and it tastes like water (some people use stronger words). And when the grocery store tries to market New Zealand apples in Washington state, we are in refrigerators-to-eskimos territory.
From the point of view of enjoyment, I do not think we actually gain anything from the availability of out-of-season fruits and vegetables. We lose the interest of anticipation, and they are not good anyway.
My father used to rave about the flavor of leeks and cabbages, usually ones he had grown, and I used to think he was from another planet. I now realize that he is right. Today I made a zuppa, a soup, of farro (spelt, a variety of wheat) and winter vegetables. It was great, and it has to be eaten in winter.
Here is what I did: I sliced a small onion thin, fried it in oil with a half habanero pepper until it became soft, then added two espresso cups of spelt (espresso cups are a great measure of how many grains are needed for one person; my grandmother measured rice the same way). I stir fried for a couple of minutes, then I added a thinly-sliced cup of cabbage, and stir-fried that too for another minute. Then I added about two cups of water, a small carrot (sliced), and one celery stalk, also sliced. I brought everything to the boil, and took it off the fire. Three or four hours later, when it was time to eat, I warmed it up again. The spelt was just chewy enough.