This amazing Thai trailer kitchen near the Portland State University campus is one of the best bargains around: everything is $5 and includes a free bottle of water.
Noodles, curries, fried rices and stir-fry/sautes.
Keywords: Just you alone / As a single, Dress casual, Take out / Delivery, Vegetarian / Vegan, Restaurant, Everyone, Noodles (Asian), As a senior citizen, As a couple, Lunch, Thai, Very cheap (under US$ 5)