Preheat oven to 400 degrees.
Preheat same sauté pan over high heat. Salt & pepper inside of pork loin.
Spread Dijon mustard evenly over cut side of pork loin.
Add stuffing mixture and spread evenly over inside of pork loin.
Beginning with outside end, roll pork loin up.
Secure with butcher’s twine.
Sprinkle exterior of roll with salt & pepper.
Add olive oil to preheated sauté pan and sear all sides of pork loin in pan, 2-3 minutes per side.
Once all sides of pork loin are seared, transfer sauté pan with pork to preheated oven.
Roast until internal temperature reaches 145 degrees (20-30 minutes).
Remove pan from oven, and remove pork loin from pan.
Tent pork loin with foil and let rest for 10-15 minutes.
While pork is resting, use sauté pan and pork drippings to create pan sauce