It seems everyone agrees that food preferences were NOT dictated via torah moshe m’sinai nor does the very limited (and grossly unhealthy) pantry of food choices available to yidden in the Alte Heim 75 or 100 years ago have any relevance to what we choose to eat today based on having access to an almost unlimited set of choices that provide much greater nutrition, are healthier and satisfy even the kashruth requirements of the “mega machmir” crowd. Of course, every segment of the tzibur and every family may have its own minhagim which may guide their menus, especially for Shabbos and yom tovim, but otherwise there really are no limits (other than kashruth) for a frum yid today living in any large metropolitan area. Also, today, there are many more families where men share in the cooking with their wives so that introduces a totally separate range of food choices and preparation options. Finally, it was not that easy in the Alte Heim to push a few buttons on your iPhone and have your chulent delivered to your door within 30 minutes. It took that long to walk down the street to the rebbe’s house with a chicken you were fortunate enough to have for Shabbos but about which you had a sheilah.
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