Never eaten a mug shot, but seems loads of you rave about them, but surely, if you are eating them on extra easy you have to have a 1/3rd superfree with it?
As a meal or a snack? Personally I don't think a mugshot is a snack and if taken as part of a meal then yes you should have your one third superfree foods.
Im on EE today and one for my lunch as it was quick and easy. Afterwards I chopped a banana and added a few grapes and poured some natural fat free yoghurt in a bowl to get my 3rd superfree. I would normally try and have veg to make up my 3rd however as a one off I dont see that it would do any harm!