I had the most interesting order taking this week. The FA, after all pax boarded, basically said, "attention all first class passengers."
He then proceeded to say here are the meal choices. If you want A, raise your hand, if you want B, raise your hand. Meal ordering completed in 10 seconds. Though, kind of sucked when they delivered the meal and then had to ask me what I wanted to drink later - kind of defeated that meal order process.