Moules-frites (mussels and French fries) may be available in other countries like France and the U.S., but the savory and delicious combination originated in Belgium. 

Mussels, suggested by Quora user Valentin V., are prepared in any number of ways (cooked with wine, butter, and herbs, or maybe a tomato-based broth) and served with salty, crispy fries.

Wash it down with a refreshing Belgian beer.

Read more: http://www.businessinsider.com/the-best-thing-to-eat-in-every-country-2013-9?op=1#ixzz3JuLX3fUg