Green Zebra is toward the high end of restaurants we can afford, so for us it is a special occasion restaurant. The staff are pleasant, and the restaurant has a neighborhood feel without being too casual.
I'm never good with putting together my own selection of small plates into a satisfying meal, so I like to get the tasting menu (currently $38 for four courses). I don't think I've ever had an experience where every course amazed me, but I've always been happy with them overall. In fact, one of the things I like about Green Zebra is that it's a restaurant that doesn't try to upstage your dinner companions with its food; instead, it fills in part of a pleasant background.
That said, the soups are usually excellent, and the chefs create dishes intended to showcase vegetables rather than trying to copy non-vegetarian dishes.