I am guessing that Noah and his family likely survived on saurkraut made from all those pickled plants that would have piled up on the dry land after the flood. The plants which weren't pickled would have fermented and that would explain some of the drunkenness that occured after the flood and the shameful episode involving Ham and the naked drunk Noah. The vineyard was a "cover story" because the writer didn't want to admit that Noah got drunk from eating fermented garbage.
Since most YEC creationists say that fish survived the flood, maybe Noah fished for his dinner. Since Noah did not have a way of cooking or preserving the fish this was likely when rakfisk was invented. Noahrewegians eat it to this day. Maybe it was the rakfisk that made Noah drunk and started all the trouble with Ham. I am so confused.