What is Italy's national dish?

Olives ( many varieties).

Figs

Tomatoes(Calabria for sundried), (San Marzano for canned)

Trebbiano Grapes for Balsamic vinegar and wine( also many other grape varieties).

The famous lemons Of Sorrento

The famous Gargano lemons of Apulia.

Porcini Mushrooms

Portobello Mushrooms

White Piedmontese Truffles( the most expensive food in the world).

Wild Black Truffles

Sicilian Oregano ( the best along with Greek).

Blood Oranges ( Sicily).

Almonds( At the foot of Mt. Edna) The Best.

PistachiOS ( Sicily)

Pine Nuts ( aka pignoli nuts)

Hazelnuts.

Chestnuts

Garlic

Wild Fennel

Fava Beans

Escarole

Cannelini beans

Canoroli Rice

Aborio Rice

Brown Lentils

Chamomille( Bonomelli)