Wash, clean and chop the mushrooms. Peel onion and garlic and chop finely. Cut the bacon into cubes as well. Wash parsley, dab dry and chop. Melt 15 g fat in a pan.
Fry the mushrooms, onion, garlic and bacon for about 3 minutes. Season with salt and pepper. Sprinkle with parsley. Drain the liquid. Separate the eggs for the pancake batter. Beat the egg white until very stiff.
Mix flour, milk and egg yolk well. Season with salt, pepper and nutmeg. Carefully fold in the egg white. Melt a little fat in a coated pan. Add 1/4 of the dough at a time and let it falter a little.
Spread 1/4 of the mushrooms on each and bake in the preheated oven (electric range: 225 ° C/ gas: level 4) for about 8 minutes. Lamb's lettuce tastes good with it.