D.P.
Does it have to be a main dish?
You could make Shredded BBQ Beef--super easy in a crock pot (which is used to transport and warm it in too)
Place chuck roast(s) in crockpot and cook all day on low.
Drain liquid.
Shred meat with two large forks.
Add bottled BBQ sauce (Jack Daniels is great!) and about 1/2 jar of apricot preserves (mix the two first).
YUMMMMMMY! (and easy!)
You might want to bring some buns too.