Wash the meat and dab dry. Place in a large pot. Clean or peel the soup greens, wash and cut into pieces. Put the soup greens, bay leaf and peppercorns in the pot.
Add approx. 1.5 litres of water so that the meat is covered. Bring everything to the boil, season with salt and simmer covered over a low heat for about 45 minutes. Peel, wash and slice the carrots.
Clean, trim and quarter the mushrooms. Take the meat out of the broth and let it cool down a bit. Pour broth through a sieve and collect. Measure out 1/2 litre of stock. Boil up in a pot. Cook carrots for about 8 minutes, peas and mushrooms for about 5 minutes.
Prepare rice in boiling salted water according to package instructions. Drain vegetables on a sieve, collect broth. Remove meat from skin and bones and cut into bite-sized pieces. Melt the fat in a pot and sauté the flour in it.
Add stock while stirring, simmer for about 3 minutes. Add cream. Season sauce with salt, pepper and lemon juice. Mix in vegetables and meat. Wash the parsley, shake dry, pluck the leaves from the stalks and chop, except for a little bit for garnishing.
Arrange fricassee with parsley and rice on plates. Garnish with parsley.