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Slow Cooker Salisbury Steak

salisbury steak sauce
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Ingredients

Scale
  • 1 lb ground beef (80/20 lean-to-fat ratio)
  • 1 medium onion, diced
  • 2 cups fresh mushrooms, sliced (divided)
  • 1 cup beef broth (low sodium preferred)
  • 2 tbsp Worcestershire sauce
  • 2 tbsp tomato paste
  • Salt and pepper to taste
  • 1/3 cup bread crumbs (plain or panko)
  • 1 large egg
  • 1 tsp garlic powder
  • 1 tsp onion powder
  • 2 tsp Dijon mustard
  • 2 cloves garlic, minced
  • 1 beef bouillon cube or beef base
  • 1/2 tsp dried thyme
  • 1 tbsp cornstarch (for thickening if needed)
  • 2 tbsp cold water (for cornstarch slurry)
  • 2 tbsp fresh parsley, chopped (for garnish)
  • 1–2 tbsp olive oil for searing

Instructions

  1. In a large bowl, combine ground beef, bread crumbs, egg, garlic powder, onion powder, Dijon mustard, 1/2 teaspoon salt, and 1/4 teaspoon black pepper. Mix gently until just combined.
  2. Shape into 4-6 oval patties about 3/4-inch thick.
  3. Heat 1 tablespoon olive oil in a large skillet over medium-high heat. Sear patties for 2-3 minutes per side until nicely browned. Transfer to a plate.
  4. In the same skillet, add another tablespoon of oil if needed. Add diced onion and mushrooms, cooking for 4-5 minutes until softened. Add minced garlic and cook 30 seconds.
  5. Stir in Worcestershire sauce and tomato paste, cooking for 2 minutes while stirring constantly to caramelize the tomato paste.
  6. Pour in 1/4 cup of the beef broth, scraping the bottom of the pan to release all the browned bits.
  7. Transfer mushroom mixture to the slow cooker. Place seared beef patties on top, slightly nestling them into the mixture.
  8. Add beef bouillon cube, dried thyme, remaining beef broth, and additional salt and pepper to taste.
  9. Cover and cook on low for 6-8 hours until the beef patties are tender and the sauce is richly flavored.
  10. Optional: 30 minutes before serving, mix cornstarch and cold water until smooth. Stir this slurry into the slow cooker, cover, and continue cooking on high for 30 minutes until thickened.
  11. Serve patties topped with mushroom gravy and sprinkled with fresh parsley.

Notes

  • For best results, don’t skip the initial searing of the patties – this creates depth of flavor.
  • Choose ground beef with 15-20% fat content for juicy, tender patties.
  • This dish can be made a day ahead – the flavors actually improve overnight.
  • Nutrition facts are estimates and may vary based on ingredients used, portion sizes, and preparation methods.

Nutrition

Keywords: Slow Cooker Salisbury Steak, salisbury steak sauce, slow cooker beef recipes, comfort food beef, mushroom gravy

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