I keep "strictly" kosher. Harley does not. This means that Harley is more popular than I am, as I force all of my friends to go to kosher/vegetarian restaurants with me, or to listen to me act like a martyr while eating my salad (sans dressing). Some might argue that this defeats the purpose of kashrut, which may/may not have been an invention by the rabbis to force Jews to eat together, or at least not with non-Jews. For instance, last week I took my definitively non-Jewish male best friend (from now on Platonic Best Friend, PBF) and his girlfriend to a kosher dairy restaurant. There I had a fairly good meal, as did PBF, his girlfriend, however, made the mistake of ordering pizza. It was so awful that she could not finish.
There has been some talk about pizza recently, kosher, and otherwise, not to mention the somewhat recent creation of KosherNY, a (somewhat) complete database of kosher restaurants in New York City. According to Kosher-NY there are 14 restaurants in Manhattan alone that serve kosher pizza. Sadly, few of them are reviewed, so I cannot speak to their quality, except for those that I have actually tasted.
According to Gridskipper "you can't have a real city without Jews, and everyone knows that Jews won't come unless you have a kosher pizza joint," so by that reasoning, LA is now a real city. Thanks Hill Street Pizza! For those who don't live in a "real city" Baleboosteh provides a recipe for kosher pizza, although I'd like to point out that the kitchen, ingredients, and utensils determine the kashrut of the final product. Another option for out-of-towners is Flying Kosher Pizza. Audrey of LowConcept (where I found the idea) is the only person I know who has heard of it, and she didn't eat any, but it sounds like a promising concept, if any good. Either that, or it speaks to the ridiculous heights that kashrut has achieved. Either or.
DAG of NFOSS is on the type of quest that I totally support, both for its unscientific nature, as well as its general uselessness. He is trying to eat at a kosher pizza place in every state that has one. Not every pizza place, nor a pizza place in every state. I love arbitrary distinctions. More useful is DMZ of Critically Kosher's review of Tov Pizza in Baltimore. Final verdict? Cheap, fast, but kind of grody. I've been to Baltimore many a time (my mom buys her hats there) but we always have Chinese, not pizza. I guess that my mom (a vegetarian) is a fan of the "meat that my husband can eat, but that I at no point have to touch" idea.
And last, but not least, courtesy of Tzvee, a "pizza war" in Teaneck. No, I am not kidding.