The topping here is loosely based on the French butter sauce, polonaise, except that olive oil substitutes for butter. What lies behind the addition of the pecans? Serendipity-another culinary tradition.

Plan on making this no more than 1 hour before serving. You don't want the crumbs, a large part of the pleasure when fresh, to become soggy.. For how to get a jumpstart on prepping the ingredients, go to the end of the recipe.