1 box Manischewitz egg and onion matzo
In a large skillet, melt butter, add mushrooms, celery, onions sauté with rice as directed on package.
Soak matzo then mix with matzo meal, eggs, salt and pepper. Add to a frying pan; mix all together.
Butter casserole dish. Pat mixture into dish and bake at 350 degrees for 45 minutes.