Preheat oven to 400°F (200°C).
Rub the pork tenderloin with olive oil and season with salt, pepper, garlic powder, onion powder, and thyme.
Place on a baking sheet and roast for 20-25 minutes or until internal temperature reaches 145°F (63°C).
Remove from oven, cover loosely with foil, and let rest for 5 minutes before slicing.