Leek and Potato with Mussels

Vichyssoise? We don't need no stinking Vichyssoise! We have this Leek and Potato with Mussels, which I debated calling "Green Chowder," to go along with the traditional red and white chowders (you could serve all three side by side, an Italian flag of chowders!), but "green chowder' just doesn't sound too appetizing, it sounds like one of those undergraduate euphemisms for something I can't even bring myself to mention on a food blog, so, "Leek and Potato with Mussels" it is. I will let the pictures tell the story, they are after all worth a thousand words each: