YOU SAID:
I enjoy pineapple on pizza.
INTO JAPANESE
私はピザにパイナップルをお楽しみください。
BACK INTO ENGLISH
I enjoy the pineapple pizza.
INTO JAPANESE
私はパイナップルのピザをお楽しみください。
BACK INTO ENGLISH
I enjoy the pineapple pizza.
You've done this before, haven't you.