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Salisbury Steak
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5 from 3 votes

Salisbury Steak

Prep Time 45 minutes
Cook Time 35 minutes
Total Time 1 hour 20 minutes
Servings 4 servings


  • 1/2 cup milk
  • 1/3 cup instant potato flakes
  • 1 packet dry onion soup mix
  • 1 pound lean ground beef (90%)
  • 1/4 teaspoon pepper
  • 4 tablespoons butter, divided
  • 1 tablespoon vegetable oil
  • 1 medium yellow onion, peeled, cut in half and thinly sliced
  • 1 (8-ounce) package white mushrooms, sliced
  • 2 tablespoons flour
  • 1 tablespoon ketchup
  • 1 can beef broth


  • In a medium bowl, mix together milk and potato flakes. Stir in 1 tablespoon on onion soup mix.
  • Add ground beef and 1/4 teaspoon pepper. Mix together and form into 4 oval-shaped patties. Place on a plate and cover with plastic wrap. Refrigerate at least 30 minutes.
  • Melt 1 tablespoon butter in a large nonstick pan over medium-high heat. Add patties and cook until nicely browned on both sides, about 5 minutes per side. Transfer to a plate and set aside.
  • Add remaining 3 tablespoons butter and 1 tablespoon vegetable oil to pan and place over medium heat. Add sliced onion.
  • Once onion begins to soften, after about 2 minutes, add mushrooms and cook until mushrooms are browned and most of liquid has evaporated.
  • Sprinkle flour on top of onion/mushroom mixture. Stir and cook for 1 minute.
  • Stir in remaining onion soup mix and ketchup.
  • Gradually whisk in broth. Bring to a simmer.
  • Return patties to pan, cover, reduce heat to low, and cook 12 to 14 minutes.
  • Check for seasoning and add salt and pepper to taste.
  • Serve over mashed potatoes.