Yes, you can enjoy crispy, delicious, locally-sourced salads all winter long. The secret is grated root vegetables.
Celeriac, the fat, hairy root of the celery plant, is no beauty to look at, but its mild celery flavor is delicious when peeled, grated, and combined with grated carrot to make a slaw.
Beets and carrots also make great slaw-type salads, either alone or combined with each other. Dress with your favorite dressing, or simply add a splash of balsamic vinegar, lemon juice, or orange juice, and salt and pepper to taste. A small handful of sprouts adds an earthy flavor. A few chopped walnuts are good in a beet salad. You could try adding sunflower seeds, raisins, or anything else you have on hand.