just south in edmonds are some korean restaurants. not sure about happy hour, not sure best way to order, but I stopped by for lunch and basically ordered meat and rice. wasn't on menu but what came with was 6-8 small plates with tasty tidbits most I didn't recognize but all very good. not sure if it's just a lunch thing.
These dishes are called banchan. They accompany all Korean meals where there is rice served. The more formal the meal, the more dishes there are.
Sushi Zen, about 10-15 min east of Lynnwood in Mill Creek, has a pretty decent happy hour for the area. There are also happy hours at the restaurants in Mill Creek Town Center (Azul, Capri, etc.)
13206 Bothell Everett Hwy Ste 402, Mill Creek, WA 98012
One idea would be to head into the Food Court at Paldo World.
They have a few places in there where you could order a fun assortment of "small plates" and such. Chicky Pub chicken, dumplings, korean tidbits, etc.
Probably not what you were thinking of, but a fun unconventional idea to think about.
1720 Highway 99, Lynnwood, WA 98037
Urika, Caspers "Taste of the South" is in Shoreline on North Aurora. Casper's carries on the Southern tradition "If it ain't fried, it ain't food." Given that, their shrimp are absolutely amazing. The ribs won't win any awards, but they also have catfish, allegator and the region's best hush puppies. Well worth a Chowhound's time.
You might consider Scott's Bar & Grill, 8115 Lake Ballinger Way in Edmonds. It's a large full-service restaurant. Very comfortable with great service. They have a large bar with appetizer menu. The food is consistently good.
I really like Sushi Moto in Edmonds on Rt 99. Tiny place, very fresh fish.
For Korean, I would suggest Kaya on Rt 99 in Edmonds. Their food is quite good. You may find better individual items elsewhere, but Kaya is a nicer setting with friendly service. Better for a social event.
Though I often agree with Leper, I have to disagree with the recommendation for Caspers in Shoreline. I found the food mediocre, though the service is nice.
My favorite Thai place is Amorn Thai in Mountlake Terrace. Very relaxing, homey place. Lovely food. Not a happy hour kind of place, but you all could relax and linger and be comfortable.
If you get an urge for a great burger and fries, I recommend Redline Burger, a little joint at 20801 Highway 99 in Lynnwood. At corner of 208th St, Northbound side, across from Walgreens.
Downtown Edmonds is 15 minutes from Alderwood Mall via 196th St S.W.
Olives Cafe and Wine Bar has small plates, dinner sizes, 1/2 sizes and a bar menu and happy hour drink and food menu. Incredible service.
My favorite is the Truffled Mac & Cheese.
It's not ethnic, but great food, and downtown Edmonds is alwasy fun to walk around in the summer.