Cooking specifically for "leftovers": What and how to do it?

What do you do, and how do you do it? Why I am asking? Specifically, these meals are to be eaten on a boat. I go down to the boat on most weekends, and many times we go on long and overnight/over weekend trips.  We often have 4-8 people onboard. I am looking for ideas for quick simple and delicious meals on the boat that are freezable and "flexible".

In the past, I brought down “fresh” meals (not frozen).  This year, I want to be more flexible and freeze things, because if we end up catching fish, we will often cook it while still out on the water. For instance, I am going to cook 4 pork butts pull them and vacuum seal them in bags for four people since I am not going down this weekend. Pulled pork is (relatively) excellent leftover, can be eaten with or without a roll.

I am looking to glean other ideas that I might be able to do during the week or whenever I have the time for later consumption.

Things to keep in mind:

• We have a 2 burner stove, a grill that (is only used when offshore and waves are < 2 foot), and a microwave onboard.
• We are often rocking, so anything that rolls around can be a challenge (drumbsticks until half eaten, soups etc…) in anything > 3 foot waves.

You all have great ideas on new/fresh and interesting meals, I though I would ask about best meals to be intended to be eaten as leftovers.