For 4-6 servings:
Wash the chicory carefully and cut into strips. Sauté the finely chipped onion in a few spoonfuls of oil; add the chicory, cover the pot and allow to cook over a low heat. Before turning off the heat, season with salt and a generous amount of freshly ground pepper. In the meantime, boil the spaghetti and drain when al dente; transfer to the pot with the chicory. Mix well with the cream and the fontina cheese cut into cubes. Sprinkle with grated nutmeg.