Soak the mushrooms in warm water. Drain
and slice it into thin strips. Dry the beef with kitchen paper. Cut
into 1/4 inch and then into strips. Heat up the oil in a deep pan. Fry
the onions, mushrooms and beef for 3 minutes. Add in the rice and stir
for 2 minutes. Add 2 cups of boiling water, salt, ground pepper and
soy sauce. Stir and bring to the boil. Then reduce the heat, cover the
pan and simmer for 20 minutes. Dish out onto a warmed dish and
sprinkle with sesame seeds before serving.