Oil a 12 cup Bundt pan. In a pan, mix gelatin and buttermilk; heat over medium heat, stirring til gelatin is dissolved; cool. In large bowl, mix all ingredients and gelatin mixture. Heap salad into pan/press firmly into place. Cover and refrigerate til set. To unmold, use a thin narrow plastic knife and loosen center core of salad. Dip pan in hot water for about 10 seconds; turn out on serving plate. Garnish with parsley.