Preheat oven to 500 degrees.
Rub fillet roast with oil, then sprinkle on chopped garlic and a generous portion of salt & pepper.
Place fillet roast in pan with fat side on top
Once oven is preheated, put roast in oven, then reduce oven temperature to 350 degrees.
Cook for 45 minutes at 350 degrees
Check thermometer for temperature. For rare pull at 120 degrees, medium pull at 130 degrees.
Let stand for 10 minutes before serving.