We went to The Zenith for an event. While we weren't thrilled at the prospect of a vegetarian restaurant, we loved Zenith! Considering we were there for an event, we had the opportunity to try an assortment of different dishes and really enjoyed all of them. My favorites were the spinach lasagna, pasta with pesto and olives, and thai pasta salad. I'm not sure if these were regular menu items, but given how good they were, I'm sure the rest of the menu is just a good. I would definitely go back!
My only complaint is that it did not have air conditioning, and got a bit hot!