DON'T DO IT!!!!!!!! You will miss food, there is no denying that, it has been a part of your life for years, and now is gone. But it's departure is temporary, you will return to the world of food, only when you do you will look at it with new, educated eyes!
If you eat now, you firstly run the risk of being knocked out of kitosis. Secondly you will have to live with the guilt of "cheating" on the plan, and thirdly, it is a slow road to ruin, will it just be the once? or will it lead to a "once more won't hurt!"
Trust me, have been there, done that, it isn't worth it - when I cheated I had a bowl of sea food, so all protein, but had a poor weight loss AND had to deal with the guilt I put onto myself and also from my OH. I have not cheated since, been tempted, but not done it.
Before you know it, you'll be on RtM and back to the land of the normals.
I will not deny the fact that you will crave foods throughout the diet, but your cravings will change. Think of your cravings in a positive way - they are simply foods to look forward too in only a few short months time.