They really don't have much vegetarian options there. If u are in that area U can go to marche at the curve they have a lot vegetarian food like cheese rosti, mushroom soup (best I ever tasted) , vegetarian pasta etc.
Most salad in the restaurants are just so so. Unless you go to salad specialty shop like Chai Bar or Salad Atelier. They have really awesome salads! Other restaurants should put more effort in creating a nice salad! It isn't very difficult to do anyway.