Should be pretty similar to the dinner service that is normal on NZ5 - NZ doesn't have much difference between Lunch/Dinner meals.

Like would be Lunch departing LAX, followed be an early Dinner before arrival in AKL.

NZ meal service in J/PE is nothing fast, expect that Lunch will be done in the first 2hours of the flight and Dinner around 2hours before arrival into AKL.