In an extra large saute pan over medium high heat, add butter. Once melted add onions, mushrooms and Worcestershire sauce. Let cook down for 5 minutes, then push to one side of pan.
Add ground beef, paprika and garlic powder. Cook and crumble until no longer pink. Fold in mushroom mixture. Reduce heat to medium.
In a large measuring cup, add corn starch, thyme, salt, pepper and half of beef broth. Mix thoroughly. Pour into pan along with remaining beef broth.
Add noodles to pan and let come just to a bubble. Reduce heat to medium low and cover pan. Let cook for 20 minutes.
Stir in heavy cream and sour cream. Make sure it is absolutely mixed in. Cover and let cook another 5 minutes.
Remove lid and remove from heat. Let sit 5 minutes then serve with sprinkle of parsley.
Keyword beef broth, beef stroganoff, cream of mushroom, cream sauce, egg noodles, ground beef, ground beef recipes, heavy cream, mushrooms, one pan, one pan dinner, stroganoff