YOU SAID:
What's for dinner tonight
INTO JAPANESE
今夜の夕食は何
BACK INTO ENGLISH
What's for dinner tonight?
INTO JAPANESE
今夜の夕食は何ですか。
BACK INTO ENGLISH
What is for dinner tonight?
INTO JAPANESE
今夜の夕食は何ですか。
BACK INTO ENGLISH
What is for dinner tonight?
That didn't even make that much sense in English.