9zaab is a tiny Thai street noodle place in East Cambridge. There might be more people depicted in the life-size mural on the wall than can fit inside the restaurant itself. It doesn’t have a liquor license yet, but what it does have is food that’s so good you might go for lunch and then put on glasses and a fake mustache to go again for dinner. The savory and sweet broth in the beef boat noodle soup will make you sad for other broths that don’t contribute as much to society, and the sweet Chinese sausage in the khao na gai is as good an advertisement for pork as you can find. 9zaab is casual and very affordable, especially since, if you spend $60 or more, you get to spin a Price Is Right-style wheel for the chance to win 15% off your meal.