Wash the chicken tenderloin thoroughly and pat it dry.
Season the chicken tenderloin evenly with salt, pepper, and olive oil.
Place the chicken tenderloin on a baking tray.
Bake in a preheated oven at 180°C (356°F) for 20 minutes.
Check that the outside is golden and cooked through inside.
Place the finished baked chicken tenderloin on a plate.