Prepare the cabbage. Place it in a saucepan, add milk, salt to taste. Simmer until soft for 5 minutes. Add semolina and stir. Leave to cool under the lid.
Prepare the filling for the casserole. Place the cabbage and semolina in a deep bowl. Add the raw egg and sour cream. Mix. Add the chopped egg and dill. Mix again until smooth.
Bake the casserole. Grease the baking dish with butter, put the cabbage mixture in it. Bake the casserole for 20 minutes.