YOU SAID:
I like pizza which is bread with cheese and pepperoni.
INTO JAPANESE
私は、チーズとペパロニが入ったパンのピザが好きです。
BACK INTO ENGLISH
I like bread pizza with cheese and pepperoni.
INTO JAPANESE
私はチーズとペパロニのパンピザが好きです。
BACK INTO ENGLISH
I like cheese and pepperoni bread pizza.
INTO JAPANESE
私はチーズとペパロニのパンピザが好きです。
BACK INTO ENGLISH
I like cheese and pepperoni bread pizza.
That didn't even make that much sense in English.