Slow Cooker Salisbury Steak with Creamy Onion Gravy

If you’re craving a hearty, old-fashioned comfort food dinner, this Slow Cooker Salisbury Steak with Creamy Onion Gravy is just what you need! Tender, juicy beef patties cook slowly in a rich, savory onion gravy until they’re full of flavor and incredibly satisfying.

This easy crockpot recipe is perfect for busy weeknights, cozy family dinners, or Sunday supper. Serve it over creamy mashed potatoes, egg noodles, or rice to soak up every bit of that delicious gravy.

Prep time

20 minutes

Cook time

4–5 hours LOW

Servings

6

Difficulty

Easy

Ingredients

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For the Salisbury steak patties

• 2 pounds (900 g) ground beef, preferably 80–85% lean
• ½ cup plain breadcrumbs
• 1 large egg
• ¼ cup finely diced onion
• 2 cloves garlic, minced
• 1 tablespoon Worcestershire sauce
• 1 teaspoon Dijon mustard
• 1 teaspoon onion powder
• ½ teaspoon garlic powder
• ½ teaspoon black pepper
• ½ teaspoon salt

For the creamy onion gravy

• 2 large yellow onions, thinly sliced
• 2 cups beef broth
• 1 can (10.5 oz / 298 g) condensed cream of mushroom soup
• 1 tablespoon Worcestershire sauce
• 1 teaspoon Dijon mustard
• 1 teaspoon dried thyme
• ½ teaspoon black pepper
• 1 tablespoon butter or olive oil

For thickening the gravy (optional)

• 2 tablespoons cornstarch
• 2 tablespoons cold water
• 2–3 tablespoons heavy cream, optional, for extra creaminess

For serving

• Fresh chopped parsley, optional
• Mashed potatoes, egg noodles, or steamed rice

Instructions

Step 1: Prepare the beef mixture

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1. Place the ground beef in a large mixing bowl.
2. Add the breadcrumbs, egg, diced onion, minced garlic, Worcestershire sauce, Dijon mustard, onion powder, garlic powder, salt, and pepper.
3. Mix gently with your hands or a fork until just combined.
4. Avoid overmixing, as this can make the patties dense.

Step 2: Shape the Salisbury steak patties

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1. Divide the mixture into 6 equal portions.
2. Shape each portion into an oval patty about ¾ inch thick.
3. Press gently to make the patties even in thickness.
4. Set aside while you prepare the skillet.

Step 3: Brown the patties

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1. Heat the butter or olive oil in a large skillet over medium-high heat.
2. Brown the patties for approximately 2–3 minutes per side.
3. Work in batches if needed to avoid overcrowding the pan.
4. Transfer the browned patties to a plate.

The patties do not need to cook completely at this stage. Browning develops flavor and helps them hold together during slow cooking.

Step 4: Prepare the creamy onion gravy

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1. In a medium bowl, whisk together the beef broth, condensed cream of mushroom soup, Worcestershire sauce, Dijon mustard, thyme, and black pepper.
2. Stir until the mixture is mostly smooth.
3. Taste before adding extra salt, since the broth and soup may already contain plenty.

Step 5: Layer everything in the slow cooker

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1. Spread the sliced onions across the bottom of the slow cooker.
2. Arrange the browned patties on top of the onions, stacking them only if necessary.
3. Pour the gravy mixture evenly over the patties.
4. Use a spoon to ensure the onions are distributed throughout the sauce.
5. Cover with the lid.

Step 6: Slow cook until tender

1. Cook on LOW for 4–5 hours or HIGH for 2–3 hours.
2. Check that the patties are fully cooked and tender.
3. For food safety, ground beef should reach an internal temperature of 160°F (71°C).
4. Keep the lid closed as much as possible to maintain a consistent cooking temperature.

The onions will soften into the gravy, giving it a deep, savory flavor.

Step 7: Make the gravy extra creamy and thick

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1. Carefully remove the cooked patties and set them aside, keeping them covered.
2. In a small bowl, whisk the cornstarch with cold water until smooth.
3. Stir the slurry into the gravy in the slow cooker.
4. Add the optional heavy cream for a richer texture.
5. Cover and cook on HIGH for another 10–15 minutes, until the gravy thickens.
6. Return the patties to the gravy and spoon the sauce over them.

Tip: If the gravy is already thick enough, skip the cornstarch slurry.

Step 8: Garnish and serve

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1. Sprinkle fresh parsley over the finished patties.
2. Spoon plenty of onion gravy over each serving.
3. Serve immediately with mashed potatoes, egg noodles, or rice.
4. Add steamed green beans, peas, or roasted carrots for a complete meal.

Tips for the best Salisbury steak

• Choose ground beef with some fat: 80–85% lean beef helps keep the patties juicy.
• Don’t skip browning: It adds a deeper, roasted flavor to the meat and gravy.
• Mix gently: Overworking the beef can make the patties tough.
• Slice onions evenly: Thin, uniform slices soften more consistently.
• Adjust the gravy: Add a little broth if it’s too thick, or use cornstarch slurry if it’s too thin.
• For extra flavor: Add sliced mushrooms with the onions before slow cooking.

What to serve with Salisbury steak

This hearty dish pairs perfectly with:

• Creamy garlic mashed potatoes
• Buttered egg noodles
• Steamed white rice
• Roasted carrots
• Green beans or steamed peas
• Homemade dinner rolls

Storage and reheating

• Refrigerator: Store leftovers in an airtight container with the gravy for 3–4 days.
• Freezer: Freeze the cooked patties and gravy in freezer-safe containers for up to 3 months for best quality.
• Reheating: Warm gently in a covered skillet over medium-low heat or in the microwave until steaming hot throughout. Add a splash of beef broth if the gravy has thickened.
• Food safety: Refrigerate leftovers within 2 hours of cooking.

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