Looking for an "Only In Seattle" type place

Hello all. Long time reader, first time et cetera.

Anyhow, my girlfriend and I are driving from Minneapolis (where we live) to Seattle next week. We'll have 3-4 days in Seattle with a car and no major destinations, so clearly I've been doing a little research on food.

What I'm looking for is somewhere completely unique to Seattle. It doesn't have to be a 5-star joint, or award winning or anything like that (I'm thinking $9-14 an entree). But I want to find somewhere that's entirely unique to, and a product of, Seattle. And in all my reading on this site (and others), I haven't seen any good consensus yet.

For instance, if you're in Chicago (and you read this site), you go to Hot Doug's. If you're in Kansas City, you go to Arthur Bryant's. If you're in Denver, you just try to find yourself some good green chili. If you're in Minneapolis, you go to The Modern (as far as I'm concerned, at least), or Matt's.

I've already decided that Crush is going to be our "big night out" meal, but I want some other cheaper destinations aside from that. So far it seems that Baguette Box is a consensus favorite for a lot of people, and I'm intrigued by Spur and Monsoon. But I haven't quite found that perfect Seattle place yet.

So what say you, Seattle? I'll have a car, and will be willing to drive anywhere. I don't care if it's a dive. I don't care if it's pretentious. I don't care if it's in a suburb. Lunch, dinner, breakfast, Whatever. I just want it to be delicious, and I want to think about it when I'm back home a week later.

Thanks in advance.