It's a smallish market and some farmers, like Maxwell's, are gone for the winter(and Lani is in their spot at 17th Street), but there are plenty of good things to be had today. Hudson Valley Duck Farm has rillettes, duck sausage, ducks, duck legs for confit, and duck fat for frying potatoes. Healthway has a wide variety of interesting potatoes and Madura has many kinds of mushroom as well as good looking produce. Race has pastries, apples, cider, squashes, and other vegetables, and Norwich Meadows Farm has all sorts of root vegetables and greens. Central Valley has eggs, soups, and cheeses, and Tello has eggs in various sizes.
Lani is here with many vegetables, including braising greens, salad greens, root vegetables, and many kinds of cauliflower. Consider Bardwell has delicious cheeses and a new product, cheese chips, that are addictive! The Monday Greenmarket is definitely worth a visit!