Boil 1/8 l salted water. Cover the rice and let it swell at low heat for about 20 minutes. Peel and chop carrots. Steam in 100 ml water for about 10 minutes
Fry cod in hot oil for 5-6 minutes per side, season. Peel onion, cut into rings, fry briefly. Stir cream and mustard into the carrots, season. Arrange everything, sprinkle with dill