Soak the buns. Peel and chop the onion. Knead with ground pork, squeezed bread roll and egg. Season with salt and pepper. Shape into small balls
Clean, wash and chop the carrots and peppers. Clean, wash and chop spring onions and mushrooms. Cook the spaetzle in plenty of boiling salted water for about 12 minutes
Heat the oil and fry the meatballs for about 5 minutes. Take them out. Fry the vegetables and mushrooms briefly in the frying fat. Sprinkle with flour and sauté. Deglaze with 1/2 l water and cream, bring to the boil. Stir in broth, add balls again. Simmer everything for about 5 minutes.
Season to taste with salt, pepper and mustard. Wash the chervil, remove the leaves. Drain the spaetzle. Arrange and garnish everything