When I read Jill's comment below, that I'd hate Jewish deli sandwiches, I realized I had to respond. What I don't like is a WAD of meat. The correct way to make a sandwich, and they do this in a proper Jewish deli, is to slice the meat very thinly and carelessly throw it in the sandwich partly crumpled, which creates a very important ingredient: air.
So, yes, I love Jewish deli sandwiches. In particular, I love Koch's Deli. Years ago, I lived in University City and had to walk six blocks to wash my clothes. One frigid day as I dragged my cart along the icy sidewalks with my tri-weekly laundry load, wondering if I was ever going to finish my dissertation, find true love, get a job, or convince my landlady to let me use her washer, I realized I was hungry. After dropping off my laundry, I wandered next door, where I had seen a deli sign. I opened the door and a blast of home-cured pastrami aroma almost knocked me over. A huge line of happy expectant people--black, white, Asian, young and old--waited for sandwiches from two guys telling jokes while they passed around plates of fresh-cut meats and cheeses. This is it, I thought, this is the happy place. Koch's Deli has been sucking in all the local warmth, good will and optimism. So whenever I did my laundry I would get some artery-clogging sandwich with pastrami, cole slaw, and rye bread. That's also where I learned to crave black and white cookies.
Please click on that link up there, it's just like I remember. Must. Return. To Koch's.