I ordered the japapeno veggie griller. Its texture was pretty soft but that is a common complaint with veggie burgers The taste on the other hand, was great. Even without the japapenos it had a nice little bite of spice along with a variety of other veggie-friendly flavors.
Garden State Diner is in Terminal B of Newark Liberty. It's on the opposite side of the terminal from where I usually fly, so it's a new experience for me. The service was very friendly but the kitchen was very, very slow.