Pulled pork, pulled beef, burgers, sausages, hot dogs - any of that stuff is fine vac sealed and reheated. Some stores have salami, ham, pepperoni, cheese, pre-sliced packages for use in making sandwiches, hoagies, etc.
Also, you could go buy some of those black rectangle containers with the clear lids and make stuff of to freeze, thaw, and reheat in microwave. I am always doing that for myself with different versions of pasta with chicken, pork, ground beef/pork, etc, mixed in with some peppers, mushrooms, onions, and marinara sauce.