This is an impossible question. If it was an Italian dish it would have originated in Italy. However, if the dish was created in the United States of America it would be an American dish. Maybe you meant to ask what Italian dishes are popular in the US? * Or "What Italian dishes were made famous in the US?" OR, maybe "What are some Italian-American dishes?"
Pizza is an Italian dish.
No, pastizzi is not an Italian dish since they are Maltese.
If pizza is the most popular Italian dish in then US and pizza margherita was invented in Naples, then Campania is the correct answer.
Mashed potatoes and gravy are an integral and symbolic dish of southern United States cuisine. It is most likely that it originated in this region. The fact that it originated in the US is currently not disputed.
French - originated in Nice
"Butter dish" in English is burriera in Italian.
The US spelling is lasagna (a pasta and cheese dish), but also lasagne.
A spanish dish
Italian culture originated in Italy.
COD is the type of fish used in the Italian dish Baccala
The US name for the pasta dish is "lasagna" or "lasagne" (which is the Italian plural form used in the UK).
Spaghetti originated in Italy.