In a medium mixing bowl combine herbs, spices, and lemon juice along with one tablespoon of olive oil. Stir mixture until it forms a nice, thick paste that makes a delicious rub.
Apply rub liberally over the meat, making sure that all of the pork (including the ends) is covered by the seasoning mix. Press the seasoning into the meat to ‘stick it’ more soundly.
Add the remaining olive oil to a large skillet over medium-high heat. Place the pork tenderloin in the pan and cook for 4-5 minutes, turning the meat every to sear each side of the pork.
Transfer the pork tenderloin to the oven (you can switch to a roasting pan or keep in the skillet) and bake for 20-25 minutes, or until the pork is cooked through.
Remove from the pan and sprinkle with salt and pepper, then garnish with fresh thyme. Rest the meat for 5 minutes before slicing it into 8-10 equal-sized medallions.