Beef and Mushroom Stroganoff is a hearty and flavorful dinner option. Thinly sliced beef is cooked with mushrooms, onions, and garlic until browned and tender. A rich and creamy sauce made from beef broth, sour cream, and Dijon mustard is then added to the pan and simmered until thickened. Serve this delicious stroganoff over egg noodles or mashed potatoes for a comforting and satisfying meal.