ohhh I remember the kosher deli we used to go to, in a frum neighborhood!
it was one of the last ones left in that area at that time<late 70's/early 80's>, and they had real bagels and bialys too.
for a while when I was in high school we had a restaurant in our own neighborhood run by an Jewish-Israeli man and his wife, with traditional Israeli and Middle Eastern food. My dad and I loved to go there together.
Though not at all kosher, while I was growing up we generally didn't have shellfish/shrimp, clams etc
I sure remember those jewish deli kosher hot dogs that were like nothing else!