Wash the meat. Clean, wash and coarsely chop the greens. Wash and quarter the tomatoes. Bring meat, soup greens, tomatoes, bay leaf, peppercorns and 1 teaspoon salt to the boil in 1 1/2 l water. Open simmer lightly for 1-1 1/4 hours, skimming occasionally. Remove the pork loin after approx. 30 minutes.
Noodles: Melt the fat, cool it down a bit. Knead flour, eggs, fat and 1/2 teaspoon salt until smooth. Cover and let rest for about 30 minutes
Peel, wash and slice the carrots. Clean, wash and cut leek into rings. Remove beef, sieve broth. Cook the vegetables for 15-18 minutes.
Form the pasta dough into rolls (approx. 1 cm Ø) and cut into thin slices. Cook in boiling salt water for 4-5 minutes. Drain. Remove meat from the bone and dice. Heat up with the noodles in the soup, season to taste. Sprinkle with Parmesan cheese if desired and garnish