Preheat oven to 400 degrees F (200 degrees C). Secure roast with cooking twine.
Make 8 (1/2 inch) slits around the roast, and insert 1/2 garlic clove into each slit. Sprinkle with fresh ground pepper. Place on a rack in roasting pan.
Roast in preheated oven for 20 minutes. Reduce heat to 325 degrees F, and insert meat thermometer into roast. Continue cooking about 1 hour, or to desired doneness; remove from oven. Loosely cover with foil, and let roast stand 15 minutes before slicing.
To serve, slice thinly against the grain, and use pan drippings for gravy.
This recipe does not contain many non-starchy vegetables. To maximize your results, it is highly recommended that you eat at least three servings of non-starchy vegetables via a SANE side dish or green smoothie along with this main dish.