Heat the grill to medium-high. Rub the pork loin with the garlic olive oil, salt, pepper and herbes de Provence.
Grill for 8 minutes.
Flip. Grill for 8 minutes. Turn the grill to low and continue cooking until it reaches an internal temperature of 145 degrees F.
Remove to cutting board.
Rest for 10 minutes before slicing.
Divide the arugula, goat cheese, celery and beets evenly into 4 bowls. Place sliced pork on top of the salad. Drizzle with garlic olive oil and pear balsamic vinegar. Serve.