If you plan on having a meal on Nekselo, you're either stuck to one of the following options:  bring all you want to eat yourself and snack it away while you are on the island, or  you're lucky if you know people on the island who can get you invited to their dining table.
As option  is likely to be reserved for a few lucky ones, and definately not for the fast majority of us, I guess we're all stuck to bringing our own food. There is, however, a bbq place at the end of the peer, on your left hand side. Ask the islanders if you can use this. It is not a bad place to have some food at all.