Sorry, guys...But I hear the regional
Burgerville has all of them whipped. They have a special Walla Walla Sweets onion rings going on right now. The burger is all 100% local grass-fed Angus beef, without hormones, and the veggies and fries are from local products. They even have rotating seasonal flavors for their shakes and smoothies, made with fresh local fruit.
You can't get it if you're not here. In the Specific Nerdfest, that is.