PF Chang's is an excellent, vegetarian-friendly chain restaurant with consistently terrific food, usually great service and an elegant urban atmosphere. All vegetarian items are clearly marked on the menu and are very reasonably priced. In addition, the chef is always willing to work with you if you would like something not normally vegetarian made meatless.
As a general rule, we get the vegetarian lettuce wraps, a vegetarian noodle dish, Ma Po Tofu and either spinach, snap peas, long beans or asparagus. This is enough food to feed two people for dinner and leave plenty of leftovers for a filling lunch the next day. Yummy!