Cook the Beef:

1. In a large skillet, heat oil over medium heat. Add ground beef and cook until browned. Drain excess fat if necessary.

Sauté the Veggies:

1. Add diced onion and cook for 2 minutes. Stir in garlic and mushrooms, sautéing until softened, about 5–6 minutes.

Create the Sauce Base:

1. Sprinkle flour over the mixture and stir until it coats everything evenly. Slowly pour in beef broth while stirring constantly. Bring to a simmer and cook for 5–7 minutes, allowing the sauce to thicken.

Add the Creaminess:

1. Stir in Worcestershire sauce and sour cream. Reduce heat to low and cook until the sauce is rich and creamy. Season with salt and pepper.

Cook Noodles:

1. While the sauce simmers, cook noodles according to package directions. Drain and toss with a little butter or oil to prevent sticking.

Combine & Serve:

1. Spoon the beef stroganoff mixture over noodles. Garnish with fresh chopped parsley and serve warm.