Steps

• Start by gathering all your ingredients to ensure a smooth cooking process. Chop the onion, mince the garlic, and slice the mushrooms.
• Heat one tablespoon of olive oil in a large skillet over medium-high heat. Add the beef tips, searing them until browned on all sides. Once done, remove the beef tips from the skillet and set aside.
• In the same skillet, add more olive oil if necessary and sauté the chopped onions until translucent. Then add the minced garlic and sliced mushrooms, stirring for another few minutes.
• With the vegetables still in the skillet, sprinkle the flour over them. Stir well to coat evenly. Slowly pour the beef broth into the skillet while stirring continuously.
• Add the Worcestershire sauce, return the seared beef tips to the skillet, and bring the mixture to a simmer. Cover the skillet and allow the ingredients to meld and thicken for about 15 minutes, stirring occasionally. Add salt and pepper to taste.
• Stir in the sour cream gently, ensuring a smooth blend into your sauce. Allow everything to heat through without boiling.