In a large skillet, heat oil over high heat to a smoking point. Add meat and brown lightly for a minute.
Transfer meat to a bowl and set aside. Add onion, garlic, and mushrooms.
Saute for 5 minutes. Season to taste with salt and pepper. Add red wine. Cook for 5 minutes over medium heat. In a mixing bowl stir brown sauce mix and cold water.
Mix into sauce. Bring to a boil. Add beef and sour cream.
Heat to boiling point. Serve over hot cooked egg noodles.