"It's a fast paced dining culture we have in Auckland now and established restaurants have survived because they're good at what they do. It's a matter of staying true to what they are [while] adapting."
The judges started with a long list of more than 100 restaurants in December last year and have been eating their way through the city ever since.
To earn a place in the top 50, restaurants must excel not only in terms of food, but also service, drink quality, atmosphere, design and character.
The judges visit restaurants anonymously and pay for their meals.
It's a hard job but someone's got to do it - and for the eight Metro judges who do, the top 50 is a culmination of weeks of hard work.
Not that they particularly mind.
"For our judges it's what they do, it's what they're mad about," said Walker.
"It is work but it's also an honour and it's a pleasure for us because we're privileged to eat at Auckland's best restaurants."
The judges were searching for excellence and debate among the group about whether a particular venue had earned their place on Metro's coveted list meant second and sometimes third rounds of judging were necessary.
Aucklanders' understanding of the hallmarks of quality dining was evolving and restaurants understood and were catering to that, Walker said.
"They might be things like provenance - where the things on your plate come from, sustainability, authenticity.
"Using fire, foraging, preserving and bottling, those kinds of things which in previous years may have been seen as fringe are now much more mainstream and they're coming through in terms of trends we're seeing on Auckland's dining scene now."
The last five years had seen a boom in the city's restaurant industry and with greater competition came greater quality, Walker said.
"Auckland's dining scene is a fickle beast. We can pick and choose.
"I think there's restaurants in Auckland which can confidently claim a place amongst the best restaurants in the world."
The winning restaurant will be announced at Motat in Western Springs on May 1.
Awards include Supreme Winner, Restaurant of the Year, Chef of the Year and Peugeot Restaurant Personality of the Year
Last year Sid and Chand Sahrawat's modern Indian establishment Cassia took out the top spot, and they're back on the long list twice again this year, with both Cassia and fine dining restaurant Sidart.
The Top 50 Auckland restaurants, and the finalists in the Metro Peugeot Restaurant Of The Year 2017, are (in alphabetical order):
Book online with Restaurant Hub
Amano
Apero
Artwok
Augustus Bistro
Azabu
Baduzzi
Beirut
Café Hanoi
Casita Miro
Cassia
Cazador
Cibo
Clooney
Cocoro
Coco's Cantina
Culprit
Depot
Ebisu
Euro
Federal Delicatessen
Gemmayze St
Gusto at the Grand
Ima
Kazuya
Masu
Merediths
Molten
MooChowChow
O'Connell St Bistro
Orphans Kitchen
Ortolana
Paris Butter
Pasta & Cuore
Pasture
Ponsonby Road Bistro
Rosie
Saan
Sidart
Siostra
Soul Bar & Bistro
Spacca
The Blue Breeze Inn
The Engine Room
The French Café
The Grill by Sean Connolly
The Grove
The Oyster Inn
The Shed, Te Motu
The Tasting Shed
Woodpecker Hill