English posted a series of photos of his ham, pineapple and spaghetti pizzas along with a selfie on his Facebook page in April 2017 with the caption: "Cooked dinner for the family last night - like if you agree with tinned spaghetti on pizza!"
The Facebook posted received a culinary uproar on social media, with some declaring they could not vote for a prime minister who enjoyed and "promoted" such food.
Others at the time said the unusual dish was a 1980s "Southland thing" and applauded his efforts to cook simply for his family of eight.
"Leave Bill English alone. If you had 6 kids canned spaghetti would be the height of gourmet cooking for you too!," Dylan Behan wrote on Twitter.
English later revealed that the post, which received around 9,400 likes, was a dare by one of his children.
We did it New Zealand. Overseas, they said it couldn't be done. But the proof is in the pineapple. My youngest said: '...
Posted by Bill English on Friday, 17 May 2019
Facebook users were divided on Domino's announcement earlier in the month. While some look forward to trying Domino's version of Bill English's favourite pizza, others think spaghetti and pizza should never mix.
"How about officially un-adding it from the menu," a Facebook user commented.
"Spaghetti on a pizza is actually really nice. Should do one with beef mince and cheese. Spaghetti bolognese pizza," someone suggested.
Domino's "special" Hawaiian spaghetti pizza costs $7.99 and is available for a limited time.