This is the 427th most frequent Japanese word.
ピザ
Pizza.
In this sentence, 'ピザ' is the subject of the sentence and being described as a dish from Italian cuisine.
ピザはイタリア料理の代表的な一品です。
Pizza is a representative dish of Italian cuisine.
The word 'ピザ' here serves as the object of the verb '作る' (to make), describing what is being made.
友達とピザを作るのは楽しいです。
Making pizza with friends is fun.
Here, 'ピザ' acts as the object of the verb '食べる' (to eat), indicating the food consumed.