Yep, you are definitely crazy. :-p

And this would definitely be the future if we were to continue on this path.
The path being a mixture of:

• People wanting fast food
• crony-capitalism wage slavery
• Restaurant workers who are so poorly trained (or just stupid) that it is easier, faster, and better to place the order yourself.
• People in a rush mentality
• People who still believe that "fast food" is food that provides nutrition to the body.
• It is better to have mediocre that you know than good/bad that you do not know.

All of these put together would inevitably end up with robots doing everything in a McDs. Humans will be merely for decoration / ornamental purposes, like taking the food from the robot-cook to the customer.

However, I do not believe in the future of this paradigm.
Every single one of my bullet points is under serious attack.
The cracks are already starting to form.

I believe that McDs will do the whole robot thing, just as humanity moves to an Air-lunch-n-conversation model. And McDs will abandoned.