1. Preheat oven to 425°.
2. Heat 1 tablespoon oil in a pan over medium heat. Add shallots; cook 6 minutes. Add pear, wine, thyme, and pepper; cook 2 minutes. Cool. Stir in nuts, cheese, crumbs, and parsley.
3. Slice pork lengthwise, cutting to, but not through, other side. Open halves. Place pork between sheets of plastic wrap; pound to 1/4 inch. Top pork with pears; leave 1/2-inch border. Roll, starting with long side; secure pork with picks. Sprinkle with salt.
4. Heat 1 tablespoon oil in a large ovenproof pan over medium-high heat. Add pork; sauté 5 minutes, browning all sides. Bake at 425° for 12 minutes or until a thermometer registers 145°. Remove pork from pan, and let stand 5 minutes. Slice. Bring broth to a boil in pan over medium-high heat; scrape pan to loosen browned bits. Cook 4 minutes.