The Economics of Dining as a Couple – Bloomberg View

4. Full food communism. A communist economy is a terrible idea. A communist dinner table, on the other hand, truly is a bounteous paradise. This is the final flowering of the dining experience, when the barriers wither away and all ordering is centrally planned, with the fruits distributed equally. You will know that this happy moment has arrived when you start telling the waiter “Just put the plates anywhere; we share everything.”

Source: The Economics of Dining as a Couple – Bloomberg View

My partner and I employ all four strategies, but most often it’s full food communism – which is indeed a Nash equilibrium for dining couples.