Since my update about the Portland area food trucks, I've spotted 2 more: first, Tacos Del Seoul on the Eastern Prom, about which I was very excited. While I haven't had the chance to eat there yet, the photos on facebook are positively drool-worthy.
This Korean-Mexican fusion truck serves tacos and burritos with an Asian flare from the Eastern Prom during lunch hours. They've also posted up at the breweries on Industrial Way.
I've also spotted the El Rodeo food truck down on the Eastern End of Commercial St. (near the intersection with India St.). If you're not (un)fortunate enough to know what El Rodeo is, it's a Mexican restaurant by the mall that filled the former home of Outback Steakhouse.
I went once and had some forgettable, greasy appetizer plate and a subpar margarita (sorry/not sorry to be so harsh, I love me some mall Mexican food, but this was not worthy). The truck's menu features tacos, burritos, and quesadillas. Let me know what you think if you try either of these Mexican food trucks!