Clean the spinach, wash thoroughly several times and drain well. Cut the spinach finely. Peel onion and garlic. Chop onion finely, press garlic through a garlic press. Heat the fat in a saucepan and fry the onion and garlic lightly.
Add the spinach and steam covered for about 5 minutes until it has collapsed. Season spinach with salt, pepper and nutmeg and deglaze with stock and cream. Bring to the boil and simmer for 1-2 minutes. Stir in sauce thickener, bring to the boil briefly. Season sauce with salt, pepper and nutmeg. Put the pasta in plenty of boiling salted water and boil for about 4 minutes until it becomes bubbly. Roast pine nuts in a pan without fat until golden brown. Cut ham into fine cubes and stir into the sauce, except for something to sprinkle on top. Pour the pasta onto a sieve, rinse briefly in cold water and drain.
Season sauce with salt, pepper and nutmeg. Put the pasta in plenty of boiling salted water and boil for about 4 minutes until it becomes bubbly. Roast pine nuts in a pan without fat until golden brown. Cut ham into fine cubes and stir into the sauce, except for something to sprinkle on top. Pour the pasta onto a sieve, rinse briefly in cold water and drain. Arrange pasta and sauce on plates and serve sprinkled with pine nuts and remaining ham cubes