If your aged neighbour gives you (f)artichokes and leeks, my advice is to make fartichoke boulangere. If you are not familiar with dishes cooked à la boulangère, this link gives you a recipe.
Any leftovers should be mashed or puréed and mixed with some creamy blue cheese, such as fourme d'Ambert, then more stock added until you have the consistency of a soup. Heat and ladle into bowls. Yum!