YOU SAID:
Lunch was yum, but the potato was over cooked.
INTO JAPANESE
ランチは美味しいが、ジャガイモを調理されました。
BACK INTO ENGLISH
Delicious lunch was cooking potatoes.
INTO JAPANESE
美味しいランチはポテトを作っていました。
BACK INTO ENGLISH
Delicious lunch was cooking potatoes.
That didn't even make that much sense in English.