Since I have been losing a lot of weight the past couple of years (I've dropped over 120 pounds, from around 290 to just under 170), I haven't had a Five Guys burger in that time. But I do eat their veggie sandwich, which I love. It's basically exactly the way I used to order my burgers there, but without the actual burger patty. It's basically a sauteed onions and mushroom sandwich with cheese.