Step 1: Prepare a mixture of the kasha first
Step 2: Put some butter salt pepper in water and boil the liquid in an open pan with a lid.
Step 3: Mix kasha and egg and then turn this mixture into a non-stick frying pan over medium high heat. Stir and turn this mixture for several minutes until the egg is cooked dry.
Step 4: Empty the kasha mixture into the boiling water, reduce to a simmer, cover and cook 10-15 minutes until dry and fluffy.
Step 5: Slice the meat steaks into very thin strips.
Step 6: Take a large pan and melt half the butter over medium heat. Cook the onions in it until translucent.
Step 7: When the onions are nearly brown, add the mushrooms and continue to cook.
Step 8: Know brown the strips over medium high heat in a separate pan and cook in two batches so that none of the steak gets squelchy.
Step 9: When mushrooms are prepared, add salt and pepper to your taste. Now slowly add spoonfuls of sour cream until you get a thick, creamy texture. You can add lemon juice or any other beef cooking juices to this sour cream-onion-mushroom mixture.
Best served with the arrangement of pile of kasha, steak, and onion-mushroom sauce on each plate.
One great meal that is enjoyed heartily.