I've eated cheaply in southern Vietnam - things like pho (noodle soup) and rice paper rolls which aren't fried. People there are pretty knowledgeable about the

I've eated cheaply in southern Vietnam - things like pho (noodle soup) and rice paper rolls which aren't fried. People there are pretty knowledgeable about the freshness of food - if a stall serves up crap, they go out of business pretty quickly.