Cut all the vegetables and meat into large pieces. Place them in a deep saucepan or cauldron and fry for 5 minutes over high heat.
Add flour, tomato paste, salt and pepper to taste. Stir.
Pour water into a saucepan or cauldron, adjusting the thickness you need. Bring the lagman to a boil and simmer over low heat for 30 minutes. Finally, add chopped fresh herbs.
Boil the noodles in salted water until al dente, then drain.
Place the noodles in each person's plate and pour over the vegetable and pork soup.