Here's a treat for yall. I unfortunately work at micky dees and I found a video on how a big mac is made. They really cleaned out the whole store for this... It's much messier.
Look at the part when they take the meat out. That looks like a freshly washed meat tray. At my store you just put a new piece of wax paper and put it in the tray. When you take the meat out it has marinated in the oil for awhile. There has to be almost 1/8" of oil coating the bottom of those trays...
http://www.youtube.com/watch?v=Xedkk...eature=related