In a large skillet, brown the ground beef over medium heat until fully cooked.
Add chopped onions and minced garlic; sauté until the onions are translucent.
Stir in sliced mushrooms and cook until they are tender.
Sprinkle flour over the mixture and stir to combine.
Slowly pour in the beef broth, stirring constantly to avoid lumps.
Add Worcestershire sauce, salt, and pepper to taste.
Let the mixture simmer for about 5-7 minutes, allowing it to thicken.
Reduce heat to low and stir in the sour cream until well mixed.
Cook the egg noodles according to package instructions; drain.
Serve the stroganoff over the noodles and enjoy!