Prepare the ingredients for the soufflé. Peel and wash the onion. Cook the rice in salted water as directed on the package.
Beat the white with a pinch of salt and the yolk with sour cream. Cut the salmon into small pieces and grate the cheese. Fry the onion, cut into half rings, in a frying pan until transparent.
Grease the pan with oil and turn on the oven at 230 degrees. Add pepper, seasoning, cheese, salmon, and beaten egg white to the rice. Stir.
Place the rice mixture into the mold. Salmon pieces and onions on top. Then pour the yolk on them and bake for 10 minutes.
Cut the soufflé into portions. Place salmon pieces on top. Lay out the chopped vegetables.