Bring a large pot of salted water to a boil. Add the parsnips and cook until tender when pierced with a fork, 12 to 15 minutes. Drain the parsnips in a colander and let them steam under a clean kitchen towel for about 5 minutes.
Return the parsnips to the pot and mash them with a potato masher, keeping them rather rough. Stir in the crème fraîche, butter, lemon zest, and juice. Season to taste with salt and pepper. Transfer to a warm serving bowl and sprinkle with the chopped herbs.
nutrition information (per serving):
Photo: Scott Phillips