01 -
Melt butter in a large skillet over medium heat. Add sliced mushrooms and cook, stirring occasionally, until softened.
02 -
Add chopped onion to the skillet and cook until translucent.
03 -
Add ground beef and cook, breaking it up with a spoon. Continue until browned throughout and no pink remains.
04 -
Pour in the beef broth and simmer for 3 minutes, allowing the flavors to meld.
05 -
Lower the heat and fold in sour cream until fully combined and the mixture is creamy.
06 -
Season with salt and pepper. Serve hot.