Preheat the oven to 400°F (200°C)
Pat the pork tenderloin dry with paper towels
Trim any silver skin from the tenderloin
Rub the pork with olive oil
Season with salt, black pepper, garlic powder, and paprika
Optional: add rosemary, thyme, or onion powder
Place the pork in a baking dish or on a lined sheet pan
Insert a meat thermometer into the thickest part
Roast for 20 to 25 minutes
Check for an internal temperature of 145°F (63°C)
Remove from the oven
Let rest for 5 to 10 minutes
Slice and serve