Answer:
Pizza became more popular in the 1960s because of the invention of frozen pizza.
Pizza was considered foreign food because people thought pizza was made in Italy.
Evidence:
Pizza was then easily made at home and became a meal. People who did not live near pizzerias could taste For the first time. It was easily accessible and easy to make.
In Italy, they began to put tomatoes on the dough for Favor. This became the first modern Form of pizza that we know today and the reason why many believe pizza was invented in Italy. So while Naples, Italy, is the home of the pizza we know and love today, it is not where pizza first began.