Le Petit Sao is a Vietnamese restaurant, a long and narrow set up ideal for a quick lunch and take out - I would guess less accommodating for a sit down dinner in the evening. Most weekdays, I imagine they do well with the work lunch crowd. The name translates from a combination of French and Vietnamese to the little star. We both got banh mi sandwiches. My wife got the pork, I the chicken. Both were excellent. The price was quite reasonable, especially considering the quality of the food. Service was friendly.
Le Petit Sao was a nice find. I don't think I'd head across town for it but it's a good place to remember for future lunches if we're already down there.