- In a small bowl, combine parsley, chopped sage, chopped rosemary, garlic, 3 tbsp oil, mustard, 1/4 tsp sea salt, and 1/4 tsp pepper, to make filling. 
- Preheat oven to 350°f. 
- Butterfly the pork loin. Sprinkle the top side of the butterflied loin with half of the 3/4 tsp of sea salt and 1/4 tsp pepper. 
- Spread the filling evenly across the loin, leaving 1/2' border along the edge where you made the first cut. 
- Beginning at the opposite edge, roll the loin up to wrap the filling.  
- Using kitchen twine, tie the loin every 1 1/2" to hold its shape. 
- Rub the loin with the remaining oil and sprinkle with the remaining salt and pepper. Place the loin in a small roasting pan and position on the center rack of the oven. 
- Roast for 1 hour, or until thermometer inserted in the center registers 145°f and the juices run clear.  
- Let stand for 10 minutes before carving. 
- To prevent slices from unrolling, skewer the roast every 1/4" with wooden picks along the edge where the roll ends. 
- Slice crosswise between the wooden picks and ties. 
- Remove the kitchen twine before serving. 
- Garnish with the sage leaves and rosemary sprigs. 
- Source: South Beach Diet