Now, while I do love
In-N-Out's hidden menu, Oregon and Washingon's
Burgerville has it beat by using seasonal Pacific Northwest ingredients like Walla Walla onions and Marionberries. (Marionberries are a type of blackberry that were invented in Marion County, Oregon. Walla Walla onions, obviously, come from Walla Walla, Washington. They're super-sweet and can't be grown anywhere else.)
The non-seasonal ingredients are from local
sustainable business partners. The coffee is fair trade, the bread is made in town, the eggs are cage-free, the cooking oil is recycled into biofuel, and kitchen scraps are composted.
Yes, you can eat "fast food" that's tasty and still responsible.

Burgerville began in 1961 and now has 39 locations throughout Oregon and Washington.
For our first lunch back in town, lil' sis and I decided to see if there were still any Walla Walla onion rings and Marionberry shakes still available. Since Burgerville uses seasonal ingredients, once they're gone, we have to wait until next year. Luckily, we were in town during the last week both ingredients were still in stock.