Little Papa Pho is a small Vietnamese restaurant offering some tasty plates, from Pho bo to Banh Cuon(Chicken mushroom spring rolls). Expect to wait a while as this little restaurant attracts crowds and a 30 minute wait is expected. Nevertheless, its GOOD, much better than the chains you find around and though there is a wait, you'll feel satisfied at the end.
The lines do get annoying but your rewarded at the end with the food. As far as getting Viet food that taste like this, the closest thing you'll find is at the Ansan Asia Town.