Seriously? My kitchen. I can't stand anyone's posole but my own, which is really my dad's recipe, and I gotta say that this year's first batch using stew pork from Rain Shadow Meats was ethereal. I'll let you know when I make another 5 gallons of it ;)

Here's a good list:

http://www.capitolhillseattle.com/2010/12/24/whats-open-on-christmas-day-2010-coffee-booze-food-and-grocery-stores-on-capitol-hill

Gorgeous George's is my favorite place to go with my family. It's located on 78th & Greenwood and serves Middle Eastern food. Chef George is from Nazareth and makes the best lamb shawarma, "George's Grandma's Chicken" (a whole small chicken big enough to share and available Friday-Sunday), fantastic hummus with lamb, great falafel, an incredible fattoush salad, and delicious lentil soup, among other wonderful dishes. The prices for entrees are higher than $14 apiece, but the portions are huge. Most often, my parents and I order two appetizers and two entrees and split them. And we always have leftovers. The restaurant can get a little noisy on Friday and Saturday nights, but other nights are generally quieter.
http://www.gorgeousgeorges.com/dinnermenu.html

emmer & rye on Queen Anne is a great place to go with family as well. It used to be Julia's, so the space couldn't be less romantic and there's little intimacy with the bright lights and other families surrounding you. But, the restaurant is separated into rooms (old house, ya know), so each room's sound is rather self-contained. Also, the menu is extensive and most plates (including apps) are available in small/half portions, for individual ordering, or large portions for sharing. http://www.emmerandrye.com/menu.php

Ray's Cafe works well, especially during the winter and early spring, when fewer people are there. Their menu items for dinner usually hover somewhere in the 11-22 dollar range, so many of the dishes would work within your price range, while others would be a little steeper. The atmosphere is very casual and family-oriented.
http://www.rays.com/cafe/entrees

Another great choice would be Saltoro, on 140th and Greenwood. Their sea salt chicken is delicious and the prices are moderate.

Just a fraction of a mile South of the canal is Pomodoro on Eastlake... and their food is the YUM.

Otherwise, OCHO (ballard) is the place for you- it's just not a perfect place for a large group, like Pomo is.

if you're willing to focus less on the 'BR' and more on the 'UNCH', I'd say maybe Cafe Presse. They have some great egg dishes for your egg-eating pals, but I could imagine making a brunch out of some soup, their chicken liver terrine, the bibb lettuce salad, maybe the figs & honey & spanish cheese...

It's not in Seattle, but Sirens' portobello mushroom sandwich in Port Townsend will make your nipples shoot off like bottle-rockets and your knees turn into melted fudgicles.

The Back Room at Liberty on 15ht (Capitol Hill) is the best deal in town - Free!~ http://www.libertybars.com/

I also like The Pussy Room at Copper Gate but not sure what their pricing is. http://www.yelp.com/biz/the-pussy-room-seattle#query:copper%20gate

I was at Elysian Fields last night (of all places) and although the food was only ok, they have a wonderful lounge set off the main room. Feels like an old smoking room with dark burgundy leather couches, rich walls and huge aquariums that illuminate the darkness. A surprisingly sexy space for the rest of the venue! http://www.elysianbrewing.com/elysianfields.html

The Atlantic Crossing on Rooselvelt.

Bethany wrote briefly about Knee High last month on Slog, in a post about new bars and restaurants:

Knee High on Capitol Hill: Where Il Forno pizzeria used to be on Olive Way, a bar and kitchen "run in the spirit of" a speakeasy ("Our cocktails are cheerful reminders of 1920s popular mixers, updated for the 21st century palate. Our menu is rich with local fare and fabulous favorites").