A new discovery - Cupcake Royale (with an outpost in Downtown Bellevue) now carries gluten-free cupcakes! They only had double-fudge with vanilla frosting available on my last visit, but the texture was fluffy and the chocolate-ness was excellent. I'm just thankful that local cucake shops are starting to carry a safe option for those of us who can't eat wheat!
One of my favorite date restaurants downtown - perfect for a cocktail and tapas - is Tango. Tango has an extensive gluten-free menu which includes stuffed dates wrapped in bacon, Spanish tortillas, delicious corn tortillas and carnitas del puerco, paella and salads. The waitstaff and kitchen were very attentive and careful that I didn't accidentally eat something that had come in contact with wheat. And besides being perfect for a date, it's in a great location for out-of-towners who want to try something besides the average salmon-seafood Northwest cuisine.
One of the options for Redmond restaurants with good gluten-free options is the Southwest local chain Matador. Here's a link to the Seattle gluten-free menu, but Redmond's is very similar. I really liked the braised pork sopa but it's a great place to hit with co-workers for drinks and snacks after work without having to worry that the place won't have any options for you.