YOU SAID:
Oh, egads! My roast is ruined! But what if I were to purchase fast food and disguise it as my own cooking? Oh ho ho, delightfully devilish, Seymour.
INTO JAPANESE
ああ、egads!私のローストは台無しになる!しかし、ファーストフードを購入し、自分の料理として偽装だったらどうですか。ああ ho ho、楽しく悪魔、シーモア。
You've done this before, haven't you.