When you look up “banh mi” in the Midtown East MenuPages listings, you find Num Pang, a tiny Cambodian sandwich shop started by two friends that’s distinctly not-banh-mi yet nonetheless satisfies every spicy sandwich desire I have. The menu is about fifteen sandwiches long and four side dishes deep (plus a bunch of soups and salads that I barely notice the existence of due to their health benefits), and my boyfriend and I haven’t tried anything yet that hasn’t left us wishing for one more sandwich to eat and one more side to hold onto like a little family pet that we bathe and take on a walk from time…