Place pecans on an ungreased baking sheet. Bake at 350 degrees for 8 minutes, stirring twice; let cool. Place cream cheese, onions, mustard, garlic and hot pepper sauce in a bowl. Beat with an electric mixer on slow speed for about 3 minutes. Stir in Cheddar cheese. Form into a mummy-shaped log and wrap in plastic wrap. Chill for 15 to 20 minutes. Mix parsley with toasted pecans and spread on a baking sheet or wax paper. Unwrap log and roll in parsley mixture, covering completely. Wrap again in plastic wrap and store in refrigerator until ready to serve. Serve with crackers.