It is the main dish associated with that country in the minds of people from other countries. The English national dish is roast beef and Yorkshire puddings. The French are so convinced we live on it they call us "rosbifs" The national dish of Spain is Paella. Tunisia is couscous. Belgium is Pomme frites
If you mean pupusas (the correct spelling) then that is a Salvadoran dish.
Feijoada is the national dish of the country of Brazil.
Poland has Bigos(Hunter's Stew) as a national dish.
Paris doesn't have a national dish. Paris is a city, not a country.
Grenada is the country where boil dung is found as its national dish
Mexican Chicken, a national dish, is named after the Country name in the dish - Mexico! This has been called the "National Dish" of Mexico. This is often used as a spicy dish with chillies.
Brazil
Brazil
Scandinavia is region, not a country
Guyana
italy
Montserrat