12 ounces egg noodles, cooked according to package instructions
Chopped parsley for garnish (optional)
Instructions
Sauté the Beef: In a large skillet, heat olive oil over medium-high heat. Add the beef strips and cook until browned. Remove and set aside.
Cook the Vegetables: In the same skillet, add onions and mushrooms, sautéing until softened and lightly browned.
Make the Sauce: Sprinkle flour over the vegetables, stirring to combine. Gradually add beef broth while stirring, then add mustard and simmer until thickened.
Combine: Reduce heat and stir in sour cream, then add the cooked beef back to the skillet. Heat gently without boiling, season with salt and pepper.
Serve: Serve the stroganoff over cooked egg noodles, garnished with chopped parsley if desired.