'Shroom Burger ($10.80) consisted of a fried portobello mushroom filled with melted cheeses, topped with lettuce, tomato and ShackSauce. Another burger alternative for vegans. I felt that the bun was quite soft to chew but a bit dry aftertaste. I realised that tomato made the whole burger to be a bit waterish due to juice inside the tomato. I really like fried portobello mushroom filled different types of melted cheese oozed out from the patty. Good thing I need to go early for queuing up especially Christmas Eve if not going to get longer queue. Queue for Order was moving quite faster but the waiting time for food was around 15 to 20 minutes.