Wash and chop the parsley. Mix with flour, eggs, 1 tsp. salt, nutmeg and mineral water to a smooth, thick dough. Leave to rest for about 1 hour
Dice the bacon. Clean, wash and slice the mushrooms. Peel onions and cut into rings. Grate cheese
Skip the bacon. Add mushrooms and fry. Season with salt and pepper and take out. Add 1 tablespoon of oil to the frying fat and fry the onions in it
Bring plenty of salt water and 1 tablespoon of oil to the boil. Spread the spaetzle dough in portions on a moistened board. Scrape fine strips into the water with a long knife and cook for 3-4 minutes each time until they float on top. Lift them out with a skimmer
Pour the spaetzle, cheese and mushroom mixture into an oiled ovenproof dish. Add the onions. Bake in a hot oven (electric cooker: 200 °C/ convection oven: 175 °C/gas: level 3) for 8-10 minutes
Drink: beer or red wine