More suggestions and sources
Bailey, Ray, and Mary Earle. Home cooking to takeaways: changes in food consumption in New Zealand during 1880–1990. Palmerston North: Department of Food Technology, Massey University, 1993.
Burton, David. David Burton’s New Zealand food and cookery. Auckland: David Bateman, 2009.
Simpson, Tony. A distant feast: the origins of New Zealand’s cuisine. Auckland: Godwit, 2008.