01 -
In a 5-6 quart slow cooker, add beef stew meat, sliced onion, sliced mushrooms if using, minced garlic, cream of mushroom soup, beef broth, Worcestershire sauce, Dijon mustard, paprika, salt, and black pepper. Stir to combine evenly.
02 -
Cover and cook on low for 8 hours, or on high for 3-4 hours, until the beef is fully cooked and tender. Avoid opening the lid during cooking to maintain tenderness.
03 -
About 20 minutes before serving, stir in the softened cream cheese and sour cream. Continue cooking until the mixture is smooth and creamy, allowing the cheese to fully melt.
04 -
Stir in the cooked and drained egg noodles, coating them evenly with the sauce. Heat through for a few minutes.
05 -
Sprinkle chopped fresh parsley over the dish if desired, and serve warm.