Add the stew meat to the crockpot and season with salt, pepper, and garlic powder. Stir until the meat is evenly coated.
Add the cans of Golden Mushroom Soup. Add the water to the empty cans, swirl to loosen any soup stuck to the sides, and add to the crockpot.
Add the diced onion and Worcestershire sauce. Stir everything together.
Place the lid on top and set the crockpot to low for 8 hours.
At the 7.5 hour mark, add the cubed cream cheese and stir. Let it cook with the meat for the last 30 minutes.
Once the 8 hours is up, stir the meat together one last time, breaking any large chunks of stew meat into smaller pieces and smoothing out any clumps of cream cheese.
Stir in the cooked egg noodles, garnish with fresh parsley, serve warm, and enjoy.