What is a short summary of the story, A Magnificent Spread, in Life Ceremony?

In the story, A Magnificent Spread, the narrator panics when her sister Kumi says she is going to cook the foods from her magical homeland Dundilas for her fiancé Keiichi and his parents. When his parents see Kumi's spread, they regard it with disgust. The narrator then offers her Happy Future Foods and the parents start eating the stewed bugs they brought instead. Keiichi announces that he designed the lunch so that they could see how food is a manifestation of one's experiences and cultural identity.