Preheat your oven to 400°F (200°C).

Generously season the beef tenderloin with salt and pepper on all sides.

Heat the olive oil in an oven-safe skillet over medium-high heat until shimmering.

Add the seasoned beef tenderloin to the skillet and sear for 2 to 3 minutes on each side until browned.

Transfer the skillet to the preheated oven and roast the beef for 20 to 25 minutes for medium-rare doneness.

Check the internal temperature with a meat thermometer; aim for 125°F (51°C) for medium-rare or 135°F (57°C) for medium.

Remove the skillet from the oven, cover the beef loosely with aluminum foil, and let it rest for 10 minutes.

Slice the beef tenderloin against the grain, garnish with fresh herbs, and serve immediately.