If the mushrooms are like me - dry, they should be soaked for about two hours in boiling water.
If the mushrooms are like me - dry, you should soak the Rice cook in salted water, grate the cheese coarsely.
Minced again grind, adding salt, ground black pepper and Italian herbs.
Mushrooms well fry with one chopped onion, salt and pepper, minced a little fry with a second chopped onion.
To finished rice, add part (1/2) of cheese grated on a coarse grater and egg.
I for convenience mixing did this in two bowls, rice broke a many.
After greasing the pan with oil, spread in layers:
half of the rice, the whole minced meat, mushrooms with onion and pour the rice.
Sprinkle with the remaining cheese, mixed with breadcrumbs.
Put in oven. At 180 degrees bake for 30 minutes.
After removing from the oven, sprinkle with fresh herbs to taste.
Gratin is ready!