North Korean leader Kim Jong-un's wife Ri Sol-ju also crossed over the border on Friday evening to join her husband for the dinner.
It was the first time for the wife of a North Korean leader to step foot on South Korean soil.
Upon her arrival, she was greeted by South Korea's First Lady Kim Jung-sook at the Peace House.
Ri is known to have told President Moon that Kim Jong-un told her the talks were a success.
The dinner was also held in a cozy atmosphere, with musical performances.
Before the North Korean delegation returned home,... a farewell ceremony was held with another musical performance -- which featured video footage from earlier in the day.