Hamburger Robot

I had an interesting thought today: if fast food is supposed to be fast, why are humans making it? Couldn't a robot do it faster and more precisely? Could there McDonald's vending machines where I can customize my order? Then I could isolate myself further and not have to talk to anyone but still get my freshly thawed Mickey D's.
Well, someone else, nango17 on youtube, had the same thought in 2009, but he/she actually used Lego mindstorms to create a hamburger robot. It's kinda slow and imprecise, but it's still exactly what I was looking for.