Compared with Austin, Dallas' food truck scene is abysmal, with more meals on wheels spurred by restaurant spin-offs and investors than hungry, passionate, entrepreneurial cooks looking for a cost-effective way to get into the food business. There are a few diamonds in the rough, though, and the biggest star of them all is Nammi, the sky-blue truck helmed by two frustrated architects who thought life would be more fun if it was spent delivering delicious banh mi all over Dallas. Tina Nguyen and her partner Gary Torres cook nearly everything that's served from their truck except the bread, including the meats, pickled daikon and carrots and condiments that top their banh mi sandwiches on light, crunchy baguettes that fill your lap with shards of crust while you eat. Make sure you ask for the pâté, which is handcrafted as well. It's added to sandwiches by request only and is necessary for an authentic Vietnamese sandwich.