you are here: home » announcements » fivelambdishes to keep in your rotation via occidental grille &lambjam 2015. fivelambdishes to keep in your rotation via occidental grille &lambjam 2015. grilling at occidental grille. the americanlambjam is an epic tasting event and competition that brings together some of the most talented chefs from the dc areas to compete for the honor of bestlambdish in their market.