YOU SAID:
Help I just ate a mustard flavoured rice cake I don't know why
INTO JAPANESE
マスタード味の餅を食べた理由がわからない
BACK INTO ENGLISH
I don't know why I ate mustard-flavored mochi
INTO JAPANESE
なんでからし味の餅を食べたのかわからない
BACK INTO ENGLISH
I don't know why I ate mustard-flavored mochi
Come on, you can do better than that.