Cardoons, salsify, odd greens, beans and other veggies are my specialty: If it is not likely on a typical produce counter, then it’s probably in my garden. You can get many of these odd vegetables at good farmer’s markets, and of course you can grow your own. Linked below are some sources for seeds and sets.
NOTE: I do indeed have some recipes for “regular” garden vegetables, and they are here, too.
Root Vegetable Ragout with Polenta
Fiddlehead Stir Fry with Pork
How to Eat Cholla Buds
Crosnes and Peas
Squash Soup with Bacon