Mushroom Matzo Kugel

I love the earthy flavors of this kugel, the pungency of the mushrooms, the comforting richness of onions and celery. The kugel is great made with commonplace button mushrooms and even better if you use exotic mushrooms, like porcinis or shiitakes. You could make the kugel even richer by adding dried porcini mushrooms, which are available in Italian markets and gourmet shops (see note below). But even with button mushrooms, this kugel is the sort of dish you’ll want to highlight for the hol