Begin by preheating your oven to 325°F (163°C).
Season the beef roast generously with salt, pepper, rosemary, and thyme.
In a large ovenproof pan, heat the olive oil over medium-high heat.
Brown the beef roast on all sides. This usually takes around 4-5 minutes per side.
Once browned, remove the roast and set it aside momentarily.
In the same pan, sauté the onions until translucent.
Add the carrots and potatoes, seasoning with a bit of salt and pepper.
Give the veggies a good stir, ensuring they get a light coat of the olive oil.
Place the roast beef back into the pan, positioning it atop the vegetables.
Transfer the pan into your preheated oven.
Roast for about 2 hours or until the beef is tender and the vegetables are cooked through.
Remove the Roast beef and vegetables from the oven, and let it sit for 10 minutes before serving. This helps the meat retain its juices.