I had a wrap made with a hard-boiled egg and half a tablespoon of low fat mayonnaise with a no-fat cheese slice...is this a huge cheat???

Hello, if it is not on the sheet and it's not 0/0/0 I would say that you went off plan. I personally don't like to use the word cheat but yes, it is considered a cheat.

I wouldn't stress about it as there is nothing you can do to change it so just keep on going and don't have anything that is not on your sheet or isn't 0/0/0.