Clean the spinach, wash it thoroughly and cook it in little boiling salted water for 2-3 minutes. Let the spinach cool, squeeze out well and chop finely. Dice the bread rolls. Peel onion and garlic.
Finely dice onion, press garlic through a garlic press. Cut bacon into small cubes. Heat fat and fry bacon in it until golden brown. Add onions and garlic and fry until transparent.
Mix with the bread cubes. Beat the eggs and add to the bread together with the spinach. Then stir in flour and season the mixture with salt, pepper and nutmeg. Cover and let it rest for about 1 hour.
Put the shallots in boiling water and let them steep for about 2 minutes. Peel and halve the shallots. Clean the mushrooms and also halve them. Cut turkey breast into small cubes. Heat some oil in a large pan and fry the turkey meat briefly in it.
Take out, put the remaining oil in the pan and fry the mushrooms and shallots as well. Add meat again, season with salt and pepper and deglaze with stock. Stir in sour cream, bring to the boil and cook for 4-5 minutes.
Add the sauce thickener while stirring and cook again for about 1 minute. Keep warm. Form 12-14 dumplings from the dumpling dough (if the dough is too soft, stir in breadcrumbs). Put the dumplings into plenty of boiling salted water and let them simmer at low to medium heat for 9-10 minutes.
Lift out the dumplings, drain well and arrange on plates with turkey strips. Sprinkle with parmesan slices and red pepper and serve garnished with parsley.