When my parents visit me, they always bring roasted pig as a treat. The last time, we didn't get a chance to eat it all and I was able to vacuum seal up a few pieces.
I pulled out one of the packages from the freezer and reheated it. It takes a little finesse to make sure the roasted skin is crunchy which is the best part.
I turned the heat up on the toaster oven to 475 degrees and let it warm up over 10 minutes. I then placed the pig meat skin side up on a foil tray. After placing the tray in the oven for 5 minutes, I turned off the heat and let it sit for another 10 minutes or so.
Crispy skin and no hint that it was frozen.