For the filling chop the fillet finely. Press the salsiccia out of the skin. Heat the oil in a pot. Brown the meat cubes and salsiccia in it. Add the stock. Cover and braise over a low heat for 25-30 minutes.
Clean and wash the endive and steam it in some water. Drain and chop finely. Mix with the meat mixture and leave to cool. Puree with a hand blender. Grate the parmesan. Stir 20 g parmesan with the egg into the meat mixture.
Season with salt, pepper and nutmeg. Cover and let it rest in the refrigerator for about 45 minutes.
For the pasta dough, pile up flour on a work surface and press a depression in the middle. Add the eggs and 2-3 tbsp lukewarm water. Sprinkle 1 pinch of salt over it. Mix with a fork. Knead with your hands for 10-15 minutes until the dough is smooth.
Cover the dough and let it rest for 15-30 minutes.
Divide the dough into 3 portions. Roll out pasta sheets approx. 1 mm thin with the pasta machine or a rolling pin. Dust the noodle plates with flour and let them rest for about 5 minutes. Fill and shape into agnolotti.
Once the pasta is filled, use the pastry wheel to cut the agnolotti between the fillings. Place them on a board, dust with flour and leave to dry in a cool place for about 3 hours.
Cook in 1-2 l boiling salted water (approx. 1 teaspoon salt per litre) for 6-7 minutes. Drain and let drain. Serve sprinkled with rest of Parmesan cheese.