Preheat the Oven: Preheat your oven to 450°F (230°C).
Prepare the Roast: Pat the beef roast dry with paper towels. Rub olive oil all over the roast, followed by a generous coat of Dijon mustard. Sprinkle the minced garlic, rosemary, thyme, salt, and pepper evenly over the roast, pressing gently to adhere.
Searing the Roast: Heat a large skillet over medium-high heat. Sear the roast for 3-4 minutes on each side until browned. This step helps develop a rich, savory crust.
Roast the Meat: Transfer the roast to a roasting pan and place it in the preheated oven. Roast for 15 minutes at 450°F (230°C), then reduce the temperature to 350°F (175°C). Continue roasting for 1.5 to 2 hours, or until a meat thermometer inserted into the center reads your desired doneness (120°F/49°C for rare, 130°F/54°C for medium-rare, 140°F/60°C for medium).
Rest the Meat: Remove the roast from the oven and cover it loosely with aluminum foil. Let it rest for 10-15 minutes before slicing.
Optional Basting: While the roast rests, melt butter in a pan and combine with beef broth or red wine. Simmer for 5 minutes and use this to baste the roast slices for extra flavor before serving.