Stuffed Squash. 1/2 gallon Fennel Stock. Tomato Fennel Soup. Fennel Pesto. Toasted Fennel Au Gratin. I came home from this week’s CSA with two massive fennel bulbs complete with long stalks and the biggest toppings of frilly fronds I’ve ever seen. This was going to take a little work, and I suspected there would be…