Preheat the oven to 400°F (205°C)
Pat the turkey tenderloin dry with paper towels
Season with salt, pepper, and any desired herbs or spices
Lightly coat with oil or melted butter
Place in a baking dish or on a lined baking sheet
Bake for 20 to 30 minutes, depending on thickness
Check that the internal temperature reaches 165°F (74°C)
Remove from the oven and let rest for 5 to 10 minutes
Slice and serve