We were invited to my sister's mother-in-law's home during the Passover holiday for lunch, and she served this fish dish as part of a dairy luncheon. It was fabulous, and devoured by all, adults and children alike. Mrs. Wasserman kindly consented to share the recipe with me, and I, in turn, am happy to have the opportunity to share it with all of you. The frozen loaves that I refer to in this recipe can be found primarily in kosher markets or in grocery stores that cater to kosher consumers. Serve with horseradish or a spicy mayonnaise. Perfect not only for Passover but for all year long, excellent warm or chilled.