When it's a chilly 101 outside the body yearns for Hawaiian shave ice, even the faux kind. And Cha Cafe has pretty decent fake Hawaiian shave ice.
It also has a pretty good plate of pastrami cheese fries that pales only in comparison to the Mt Vesuvius glop you get at The Hat.
Pumpkin fries are tasty, especially paired with the wanna-be Thousand Island dipping sauce that comes with it (basically Sriracha and mayo, 'natch).
I would skip the Banh Mi sandwiches. There are, after all, limits to how much faux food the human body can take in one sitting.