Cleaning mushrooms. Rub oyster mushrooms and possibly halve them. Wash mushrooms, if necessary, dab dry and cut into thick slices. Dice the bacon. Peel and chop onion
Fry the bacon until crispy and take it out. Fry the mushrooms in the bacon fat for 4-5 minutes, brown the onion. Wash and halve the tomatoes and fry them briefly. Season everything and take out. Heat the oil in the bacon fat. Add 2-3 tablespoons of water and vinegar, bring to the boil. Wash, pluck and chop parsley
Stir parsley and bacon into the vinaigrette. Season again if necessary and pour over the mushrooms. Clean, wash and drain the salad. Arrange the mushrooms with it