A big pot of chili , spagetti or stew. It can be reheated whenever anyone feels like some.
The spiral ham or a cooked turkey sliced up is great for sandwiches or a hearty meal if you have some gravy and mashed potatoes packed as well.
Most fishing trips we really only eat twice a day. A quick snack in the morning... toast...bagels...oatmeal...then out on the water. I don't count this as a meal. Come in at noon and have a good feed...the fishing usually slows down mid day anyhow. Then out fishing again until dark. Come in clean fish...have a few beverages...heat up something quick and easy for supper and your day is done. Repeat again the next day...etc. etc.