Slow Cooker Salisbury Steak (High-Protein)

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Slow Cooker Salisbury Steak (High-Protein)

This Slow Cooker Salisbury Steak is rich, hearty, and packed with savory flavor. Juicy beef patties simmer slowly with mushrooms and a creamy onion gravy until perfectly tender. It’s an easy comfort food dinner that tastes just like an old-school diner classic — with a high-protein twist!

Why You’ll Love This Recipe

  • Easy slow cooker dinner
  • High in protein and incredibly filling
  • Rich mushroom onion gravy
  • Perfect comfort food for busy days
  • Family-friendly and freezer-friendly

Prep Time & Cook Time

  • Prep Time: 15 minutes
  • Cook Time: 5–6 hours (LOW) or 3–4 hours (HIGH)
  • Total Time: About 6 hours

Ingredients

For the Salisbury Steak Patties

  • 1½ lbs lean ground beef
  • 1 egg
  • ½ cup almond flour or breadcrumbs
  • 2 cloves garlic, minced
  • 1 teaspoon onion powder
  • 1 teaspoon Worcestershire sauce
  • ½ teaspoon paprika
  • Salt and black pepper to taste

For the Mushroom Gravy

  • 8 oz mushrooms, sliced
  • 1 small onion, sliced
  • 2 cups low-sodium beef broth
  • 1 packet brown gravy mix
  • 1 tablespoon Worcestershire sauce
  • 1 teaspoon Dijon mustard (optional)

Optional Garnishes

  • Fresh parsley
  • Cracked black pepper

Instructions

Step 1: Make the Beef Patties

In a large bowl, combine ground beef, egg, almond flour, garlic, onion powder, Worcestershire sauce, paprika, salt, and pepper.

Mix gently until combined. Form into 4–6 oval patties.

Step 2: Brown the Patties

Heat a skillet over medium-high heat.

Brown the patties for 2–3 minutes per side. They do not need to cook fully — this step adds extra flavor.

Transfer patties to the slow cooker.

Step 3: Prepare the Gravy

Layer sliced onions and mushrooms over the patties.

In a bowl, whisk together beef broth, gravy mix, Worcestershire sauce, and Dijon mustard.

Pour the mixture into the slow cooker.

Step 4: Slow Cook

Cover and cook:

  • LOW: 5–6 hours
    or
  • HIGH: 3–4 hours

The patties will become tender and soak up all the rich gravy flavor.

Step 5: Serve

Serve warm with extra mushroom gravy spooned over the top.

Perfect with:

  • Mashed potatoes
  • Cauliflower mash
  • Rice
  • Roasted vegetables
  • Buttered noodles

Storage Tips

Refrigerator

Store leftovers in an airtight container for up to 4 days.

Freezer

Freeze cooked Salisbury steak and gravy for up to 2 months.

Reheating

Warm gently on the stovetop or microwave until heated through.

Recipe Tips

  • Use lean ground beef for a higher-protein version
  • Add a splash of heavy cream for extra creamy gravy
  • For thicker gravy, stir in a cornstarch slurry during the last 20 minutes
  • Baby bella mushrooms add deeper flavor

Frequently Asked Questions

Can I make this without browning the patties first?

Yes, but browning adds richer flavor and better texture.

Is this recipe keto-friendly?

Use almond flour and a low-carb gravy mix to keep it lower in carbs.

Can I use turkey instead of beef?

Absolutely. Ground turkey works well for a lighter version.

Final Thoughts

This Slow Cooker Salisbury Steak is cozy, protein-packed comfort food at its best. Tender beef patties, savory mushrooms, and rich onion gravy make this easy crockpot dinner a guaranteed family favorite.

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