How bout fast food= Fast food? Pretty simple. Well some fast food places that I went to were not exactly fast but whatever.
I used to work for McDs back when I was like 16, in like 88' or 89'? Anyway they used to cook fresh food. They used to keep the burgers for like 20 min but they always cooked and assembled fresh. The only things they used to keep in warming bins was the fried crap, like chicken and fish fillet and nuggets. Now they pre-cook all the bullshit and store it in bins and its not the same. Sure its more streamlined and they dont waste as much, but its just not the same quality like it was back then. Meat tastes like dried out cardboard.
They are all doing it now, Wendys, McD, Burger king...etc..
Probably the best method of meat storage before assembly was this little drive in A&W I used to work at, later in high school. We used to grill the burgers and put them into a bin full of beef broth that was kept warm right on the grill. Man, those were some juicy and tasty burgers. As the day progressed they even got better because that broth would get better and better with all the burger drippings. The hot dog steam table was a trip too. When I first started there it was so fucking hard to stick my hand in there and pull out hot dogs and buns, but you just got used to it over time.