" that salad contains the three colours of the Italian flag "

along with the flags of Hungary, Bulgaria, Algeria, Burundi, the Maldives, the Basque country ...
Lots of other food possibilities there.

Reminds me of Teresa May talking about a 'red, white and blue brexit' - was that 'red white and blue' for France, the Netherlands, Russia, the USA, Thailand, the Czech Republic, Australia, Chile, Costa Rica, Cuba, Panama ... ?