01 - Preheat oven to 425°F. Line a roasting pan with foil or parchment paper for easier cleanup.
02 - Pat beef dry with paper towels. Tie with kitchen twine at 2-inch intervals to ensure even cooking.
03 - Rub tenderloin evenly with 1 tablespoon olive oil, then season with kosher salt and freshly ground black pepper.
04 - In a small bowl, combine rosemary, thyme, parsley, minced garlic, Dijon mustard, and 1 tablespoon olive oil until a paste forms.
05 - Evenly spread the herb paste over the entire surface of the beef, pressing gently to adhere.
06 - Place tenderloin on a rack within the prepared roasting pan. Roast for 30 to 35 minutes, or until an instant-read thermometer reaches 130°F for medium-rare or desired doneness.
07 - Remove from oven and tent loosely with foil. Let rest for 15 minutes before slicing for maximum juiciness.