Can I take away what is left over?
a-VAN-za — three syllables, stress on second.
When you cannot finish your pizza and want to take the leftovers home rather than waste them.
Leftover pizza is excellent reheated — in fact, cold pizza the next morning is considered a treat by many Italians. The pizzeria will provide a cardboard box. This is a perfectly normal request.
Mi dà una scatola per la pizza?
Can you give me a pizza box?
Direct request for the pizza box — specifies exactly what you need
L'avanzo lo metto via?
Shall I box up the leftovers?
What the waiter might ask proactively
Posso avere il doggy bag?
Can I have a doggy bag?
The English term is understood in tourist areas and modern establishments
Cold pizza for breakfast is a genuine Italian phenomenon, particularly beloved in Naples. The flavours develop overnight as the dough continues to absorb the tomato and oil. Neapolitans consider it one of life's small pleasures — a secret bonus meal from the previous evening.