We were RV'rs for years & did whole lot of pot lucks. Two dishes that men love are a big pan of home made mac & cheese & a chicken noodle pot that is just simmered chicken picked off the bone,with Reams frozen noodles added to the broth with the chicken. I usually add 1-2 cans of ch broth for flavor & to keep from being too thick.
Never had leftovers with either dish.
An easy dessert is to line a 9x13 dish with pie crust......mix 2 cans of pie filling with a dash of whatever flavoring goes with the filling.....almond for peach or cherry,vanilla & cinnamon for apple, spread on pie crust, dot with 1-2 Tbl butter,then cut up another crust into squares & put on top of filling.Bake at 400* till bottom crust is done & top is light golden brown.....about 35 mins.