Grilled Beef Tenderloin Marinade   Grilled Beef Tenderloin Ingredients 1 whole beef tenderloin 16 oz zesty Italian dressing 2 tbsp creole seasoning 4 tbsp soy sauce 3 tbsp old bay season Instructions Prepare beef: Trim off excess fat with a sharp knife. Snip silverskin with scissors to keep roast from bowing during cooking. Mix marinade