And as they emerged from the meal for a brief stroll together, Trump appeared to delight in showing his North Korean counterpart the interior of "The Beast", the famed USA presidential limousine known for its high-tech fortifications.
Trump, speaking in Canada on Saturday, said any agreement at the summit would be "spur of the moment", underscoring the uncertain outcome of what he called a "mission of peace".
The fighting ended on July 27, 1953, but the war technically continues today because instead of a difficult-to-negotiate peace treaty, military officers for the USA -led United Nations, North Korea and China signed an armistice that halted the fighting.
"Trump will hype this relentlessly, no matter what comes of it", tweeted Robert E. Kelly, a political science professor at Pusan National University in South Korea who is town to comment on the summit for the BBC.
The historic meeting between the two leaders will take place at the island resort of Sentosa on Tuesday.
Dare I say it, conventional politics would not have got us to the point where we are now.
The North has sought such a meeting for decades, where its leader will meet a U.S. president as an equal rather than as the representative of a pariah state. There was no need to.
"That is a different phrasing from this very broad denuclearization of the Korean Peninsula", he said.
You can imagine the drumming of fingers in anterooms as officials wait to be told if there will be peace in our time, or whether it's all fallen apart and we're heading for the airport. Would conventional politics have even taken us this far? "They both get what they want". It heralded the summit as part of a "changed era".More news: President Trump meets Kim Jong Un
Many experts on North Korea, one of the most insular and unpredictable countries in the world, remain sceptical Kim will ever completely abandon its cherished nuclear weapons.
The KCNA added that Kim was accompanied on his trip to Singapore by officials, including Kim Yong-chol, vice chairman of the Central Committee of the Workers' Party of Korea, and Ri Su-yong, vice WPK chairman on worldwide affairs, and No Kwang-chol, minister of the People's Armed Forces. There was also no sign of his sister, Kim Yo Jong, who has accompanied him to Singapore.
The Singaporean prime minister said in response that he is grateful for the North's decision to hold the summit in Singapore.
The US president vowed to unleash "fire and fury" if Pyongyang kept threatening the US. It did not include an agreement to take steps toward ending the technical state of warfare between the US and North Korea.
China and South Korea would have to sign off on any legal treaty.
Trump and Kim are set to meet at 9 a.m. Tuesday in Singapore, which is 9 p.m. Monday on the U.S. East Coast.
Trump insisted last week that the summit would "not be just a photo op", saying it would help forge a "good relationship" that would lead to a "process" towards the "ultimate making of a deal".