It's best to be wary of the restaurant that claims to specialize in too many different things, unless of course, they can also provide 36 types of cheesecake. Specializing in one thing and one thing only, Sing Sing Sandwich Shop.
Hiding in the shadow of Saigon Sandwiches, the "no we're not referencing a prison" Sing Sing's a straight-outta-Nam "cafe" run by a gregarious, ponytail-having, next-to-no English-speaking dude named Harry who fails to provide a menu because the only thing Harry makes is the best damn pork banh mi you've ever tasted (sorry, Safeway). After ambling up to the meat counter (past mini fake foliage and a panel blasting Vietnamese music videos) breathe in the authenticity via worn checkered table cloths, super low ceilings, a trickling koi fish fountain, and a shady back room laden with gambling machines and old guys smoking hand rolled cigs -- OK, so actually don't breathe it in. Your banh mi action begins simply as thin slices of "side meat" on a baguette that's toasted for five mins before Harry slathers it on both sides with Pâté n' homemade mayo (egg yoke/salad oil/sugar); stuffs it with head cheese, "Pork Patty Roll" (aka ground everything), pickled carrots/daikon/jalapeno/cucumber; and finishes it off with a dash of soy sauce that's totally unnecessary since he had you at Pork Patty Roll.
Wait: Harry does actually make one more thing. It's delicious ice coffee, meaning once you've ordered, the only thing you have left to be wary of is the entire Tenderloin.