Steps

• Heat the olive oil in a large skillet over medium heat. Add the beef slices and cook until browned on each side, ensuring they’re well-seared but not overcooked. Remove from the skillet and set aside.
• In the same skillet, add a bit more olive oil if necessary and sauté the onions until translucent. Then, add in the mushrooms and garlic, cooking until the mushrooms are tender and the garlic is fragrant.
• Pour in the beef broth and Worcestershire sauce, stirring to combine the flavors. Allow the mixture to simmer for about 5 minutes, letting it reduce slightly to intensify the taste.
• Return the cooked beef to the skillet and mix everything together gently. Lower the heat and stir in the sour cream, allowing it to blend well with the sauce.
• Sprinkle the grated cheddar cheese evenly over the mixture. Cover with a lid and let it sit for a few minutes until the cheese has melted beautifully over the beef and mushroom sauce.