. There are no doggy bags.
Italian cooks are proud of their food, and they are fully aware that reheating their leftovers in a microwave at home (or eating them cold, heaven forbid) will not do their cooking justice. This isn’t the only reason the concept of the doggy bag is anathema to Italians, but it’s the biggest one. Thankfully, most Italian portion sizes are reasonable, so it’s less likely to be a problem. Note that pizzas are single-serving, though, so if you’re looking for a lighter meal at a pizzeria maybe get one pizza to share.