Although the food was pretty good, I had a strange experience at NLB.  As a vegetarian who dislikes mushrooms, I always ask restaurant staff whether their veggie burgers are made with mushrooms.  The order taker looked like I was crazy.  She then asked the kitchen staff.  The best they could answer is "You can probably assume that the black bean burger probably doesn't have mushrooms."  For a place that says it is vegan, you would think it would be able to list what the ingredients are.