It’s no secret that Squirrel Hill is the heart of Pittsburgh’s Jewish community. Typically such a place would be froth with delis, bagel shops and falafel, but not Squirrel Hill. Sure, some of those places exist, but not like one might expect. Luckily, though, this has left room for a new type of Jewish restaurant, called Nu. Calling itself a “Modern Jewish Bistro,” Nu means “well…?” in Yiddish and came into town at the end of last year from the people who brought the world Pamela’s. Since then, it has set about redefining Jewish food. After all, it’s time for a creative take on tradition.