Sliced Beef with Buttery Mushroom Sauce

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  • 2 lbs. Cooked Beef: Steak, Roast Beef, London Broil, etc.
  • 2 C. Thinly Sliced Button Mushrooms
  • 8 Tbsp. Finely Chopped Onion
  • 2 Tbsp. Freshly Squeezed Lemon Juice
  • 2 Tbsp. Worcestershire Sauce
  • ½ tsp. Salt (or to taste)
  • 3 Cloves Garlic, Minced
  • 8 Tbs. Butter
  • ½ C. Snipped Parsley


  1. In a large sauté pan, cook onions over medium heat in 4 tablespoons of the butter until starting to brown, 5-10 minutes.
  2. Add the mushrooms and garlic, and continue to sauté until mushrooms are softened and most of the liquid has cooked off, about 10 minutes.
  3. Remove from heat and stir in the remaining 4 tablespoons butter until it melts. Add the lemon juice, Worcestershire sauce, and salt and combine well.
  4. Spoon over single servings of sliced beef and garnish with parsley