Litle Hanoi

$8.50 doesn't buy much. Except here, where it'll get you a filling lunch of spring rolls and a crunchy yummily-filled roll. Add in a drink for $1.50 and you've got a complete lunch that will taste great and be ready in half a tick.
Unfortunately if you want to sit there your options are on a bench of 3 or outside, so don't take your date there - but go the next day for a quick tasty lunch alone!