On a Friday night early Shabbos Sheva Brochos, someone who wants to join but unlike the rest of the people that already prayed Maariv, he has not. Since he usually davens when night sets in and he is needed on that later minyan. Can he wash and begin eating since it is already close to Shabbos (After Plag), or he is not allowed to eat that late so close to Shabbos?

Horav Shlomo Miller’s Shlit’a opinion is that he may wash hands and eat only a Kezais (30 gr.) of bread.