Mix the ground pork with the eggs. Season with salt and pepper if necessary. Form 4 minced steaks. Heat the oil in a pan and fry the steaks for about 10 minutes at medium heat, turning them several times. In the meantime peel and finely dice the onion.
Wash, clean and quarter the mushrooms. Wash and quarter the tomatoes and remove the seeds. Cut the flesh into small cubes. Wash parsley, dab dry and chop finely. Take the minced steaks out of the pan and keep them warm. Sauté the onion in the frying fat. Add mushrooms and steam. Season with salt and pepper. Stir in garlic crème fraîche and parsley. Arrange minced steaks with mushrooms on plates.
Sauté the onion in the frying fat. Add mushrooms and steam. Season with salt and pepper. Stir in garlic crème fraîche and parsley. Arrange minced steaks with mushrooms on plates. Sprinkle with tomato cubes and garnish with lettuce leaves. Served with farmer's baguette