YOU SAID:
What are we going to have for dinner mom? What do you want?
INTO JAPANESE
夕食のお母さんには何を食べますか?なんでしょう?
BACK INTO ENGLISH
What do you eat for your supper mom? what do you want?
INTO JAPANESE
夕食のお母さんのために何を食べますか?なんでしょう?
it is unlikely that this phrase will ever reach equilibrium