Refreshments will be nuts and a cookie. And of course Drinks.
I was on an after 8pm midcon two days ago. I did see a Concierge Key member (he preboarded with CK) eating a snack box from coach. There is no snack basket in F.
I have been on red-eye flights were they served a choice of either humus or fruit and cheese plate - on regular F dinnerware. Not sure why they don't do that here (midcon).