Ten Ren's Tea Time has upgraded from a kiosk to a full shop -- complete with an area for special tastings. No food though.
Ten Ren's teas are generally good. I tried one of their Zodiac smoothies the other day. Gemini (Mango and Coconut) was very good. It came with tapioca pearls which I thought could've been strained a little better before the smoothie went in.
I also like that they stay open a little longer than the rest of the stores in the mall, so you can grab something on your way out after the stores have kicked you out. Haha!