Trim the pork tenderloin, removing the silver skin.
Combine the oil, garlic, and herbs in a bowl. Add the pork tenderloin. Season with salt and pepper if needed (if there's no salt in the herb blend), and rub the herb/garlic mixture all over the pork.
Put the pork on a parchment paper-lined sheet pan with raised sides. Roast at 375-F for about 13-18 minutes or until the internal temperature is around 145-150F. Remove from the oven, let rest on a cutting board for about 10 minutes, then slice and serve!