Favorite foods to make bulk and freeze for the road?

When we go to Nat'l parks we pack a lunch each day. Before leaving home, I go to our local meat market and get turkey, roast beef, cheese, ham etc. for sandwiches.
We put one sandwich "fixing" in zip lock bags, mark them with our name and freeze. When we make sandwiches before heading out hiking we put the sandwiches together. The frozen part helps keep everything cold.