Please, no ready to serve pre-cooked hamburgers and hot dogs.
Nothing worst then being served a dried out pre-cooked hamburger or hot dog that has been sitting on the side of the grill, than re-heated and served.
I'm willing to wait the 8-10 minutes it takes to cook a burger. I'm sure others our as well.
Also, don't purchase six shoots worth of hamburgers and store them in the freezer. Same with the rolls.