1. Preheat oven to 425°.
2. Evenly shape tenderloin by tucking small end underneath; tie with string. Rub tenderloin with mustard.
3. Combine crushed peppercorns, and press evenly over surface of tenderloin. Place on a broiler pan coated with cooking spray; bake, uncovered, at 425° for 45 minutes or until a meat thermometer registers 145° (medium-rare) to 160° (medium). Let stand 10 minutes before slicing.
carbo rating: 1