Sitka & Spruce for lunch?
I don't know if you've already been, but here is what I can report from eating lunch there today: the smaller dishes are more or less the same as the ones they serve for dinner, but the entree-sized dishes are replaced with a couple of sandwiches ($12-$14ish). The current menu differs significantly from what's on the website, but the basic concepts are similar.
I noticed that the wine bar next door serves sandwiches and a few other light lunch items. This seems like it would be a nifty place to stop for a quicker, cheaper bite when a meal at Sitka & Spruce isn't feasible.
Sitka & Spruce
2238 Eastlake Ave E, Seattle, WA 98102