This easy Crock Pot Beef Stroganoff recipe is made with sirloin steak, mushrooms, and a creamy white sauce. It's perfect for a weeknight dinner or a comforting weekend meal and is easy to prepare with the help of your slow cooker!
– 1 tbsp olive oil – 2 lbs sirloin steak (trimmed and cut into 1" pieces – 1 tsp black pepper – 1 tsp salt – 3½ cups beef broth (½ cup reserved) – ½ tsp dried thyme – 8 oz brown mushrooms (sliced) – 2 tbsp Worcestershire sauce – 2 tbsp Dijon mustard – 3 tsp garlic (minced) – 1 (10.5 oz ) cream of mushroom soup – 8 oz sour cream – 3 tbsp cornstarch – 12 oz egg noodles (cooked)