Fiddlehead ferns have a slightly nutty flavor when cooked, and so I thought fiddleheads, toasted pine nuts, and salty, slightly funky pecorino would be a good combination. Lemon zest brightens things up a bit, and a drizzle of extra-virgin olive oil at the end seals in all the flavors.
Bring a medium-sized pot of salted water to a boil over high heat. Add the fiddlehead ferns, boil for 10 minutes, and drain.
Heat the oil in a small sauté pan over low heat. Add the pine nuts and garlic and cook until the pine nuts are golden. Add the red chile pepper flakes and fiddlehead ferns, and heat through briefly.
Transfer to a bowl, toss with the lemon zest, and shave strips of pecorino over the top using a vegetable peeler. Drizzle with more olive oil, to taste.