Ingredients for 4:
0.5 lb boiled meat
0.5 lb mushrooms (champignons or other)
1 medium onion
1 tbsp lemon juice
1 tsp mustard
Salt and pepper on taste
Cut the mushrooms into thin slices, and simmer with 1 tbsp water on low heating until they’re ready, or for about 15 minutes.
Cut the meat into medium cubes.
Cut the sweet onions into small cubes.
Mix all ingredients. Let sit for 1-2 hours in a refrigerator.
Serve with rye bread.