Canada
In the Magdalen Islands, clams are used in stuffed cabbage: a seasoned mixture of clams, rice and onions wrapped in cabbage leaves and cooked slowly in bacon fat and clam liquor. 

USA
A favorite in chowders on the American East Coast

Italy
In pasta

Portugal
With their refined flavor, clams are used in numerous recipes, particularly in southern Portugal which is home to a very popular and unusual recipe: pork and clams.

Spain
In paella