The menu isn't extensive, the food isn't varied, but if you're in the mood for pho (and maybe some cream puffs), you can't do much better than Than Brothers.
House-made cream puffs arrive when you sit down, and it's a delight to eat dessert first. Then comes a brimming bowl of noodles, broth and meat, with the traditional sprouts, basil leaves and lime on the side.
For under $5 (and usually in under 5 minutes), Than Brothers serves pho with any combination of beef roast, brisket, tripe and tendon (or chicken or vegetarian). Do get a small or medium the first time; they're huge.
The coffee and tea drinks are worth a try, too -- very potent and very sweet.