Wash the meat, dab dry and cut into strips. Peel the shallots and cut into slices. Clean, grate and halve the mushrooms. Heat oil in a pan, fry meat in it in portions, take out and season with salt and pepper.
Add the shallots and mushrooms to the hot frying fat and fry vigorously. Add meat, dust everything with flour and let it sweat. Add 500 ml water while stirring, bring to the boil, stir in stock. Let simmer for about 10 minutes at a mild heat.
Halve the cucumbers lengthwise and cut into slices. Wash the herbs, dab dry, put some parsley aside for garnishing. Cut chives into rings. Chop parsley finely. Add crème légère, mustard, cucumber and parsley.
Season with salt, pepper and possibly 1-2 tablespoons of cucumber water. Sprinkle with chives and serve garnished with parsley. Serve with bread.