YOU SAID:

I am annoyed at you for eating my food.

INTO JAPANESE

私の食べ物を食べてあなたに腹を立てています。

BACK INTO ENGLISH

I'm angry with you eating my food.

INTO JAPANESE

私はあなたが私の食べ物を食べていることに腹を立てています。

BACK INTO ENGLISH

I'm angry that you are eating my food.

INTO JAPANESE

あなたが私の食べ物を食べていることに腹を立てています。

BACK INTO ENGLISH

I'm angry that you are eating my food.