Rag said:
Divide it among several zip lock bags and reheat in simmering water.
I had smoked a big pork butt a week before we left on a family vacation and after pulling, split it up and froze it in zip lock bags. Once we were ready to head out my wife placed it in the freezer of our rig. For our third nights dinner we reheated in simmering water, placed the pulled pork on nice soft rolls that I had heated in a pan with real butter, added some bbq sauce and man were they great. We were happy as pigs in a blanket. I’m planning on doing this for every camping trip. Much better then using a microwave or pan.