If you are looking for a cozy dinner with tender beef patties, mushrooms, onions, and plenty of rich gravy, this Slow Cooker Salisbury Steak with Tomato Mushroom Gravy is an excellent recipe to make. Seasoned ground beef patties are browned for extra flavor, then slowly cooked in a savory tomato-mushroom gravy until tender and juicy.
This recipe is perfect for busy weekdays, Sunday dinners, meal prep, or cold-weather evenings when you want classic comfort food without spending hours at the stove. The slow cooker allows the Salisbury steaks to absorb the flavors of beef broth, tomatoes, Worcestershire sauce, garlic, onions, and mushrooms while creating plenty of gravy for serving.
One of the best things about homemade Salisbury steak is how well it pairs with classic sides. Serve it over creamy mashed potatoes, buttered egg noodles, rice, or cauliflower mash and spoon the tomato mushroom gravy generously over everything.
Why You’ll Love This Slow Cooker Salisbury Steak
This recipe turns simple ground beef into a hearty family dinner with very little active cooking.
Breadcrumbs and egg help the patties stay tender and hold their shape, while Worcestershire sauce and seasonings give the beef plenty of savory flavor.
Mushrooms and onions slowly cook in the gravy, adding richness and texture.
Tomato paste and tomato sauce give this version a deeper, slightly tangy gravy compared with traditional brown Salisbury steak gravy.
Searing the patties first adds extra color and flavor, while the slow cooker handles the tenderizing and gravy-making.
Ingredients
For the Salisbury Steak Patties
- 2 pounds ground beef, preferably 85% lean
- ½ cup plain breadcrumbs
- 1 large egg
- ¼ cup finely diced yellow onion
- 2 tablespoons milk
- 1 tablespoon Worcestershire sauce
- 1 teaspoon Dijon mustard
- 1 teaspoon garlic powder
- 1 teaspoon onion powder
- 1 teaspoon kosher salt
- ½ teaspoon freshly ground black pepper
- ½ teaspoon smoked paprika
- 2 tablespoons olive oil, for browning
For the Tomato Mushroom Gravy
- 8 ounces cremini or white mushrooms, sliced
- 1 medium yellow onion, thinly sliced
- 3 garlic cloves, finely minced
- 2 tablespoons tomato paste
- 1 cup tomato sauce
- 1½ cups low-sodium beef broth
- 2 tablespoons Worcestershire sauce
- 1 teaspoon Dijon mustard
- 1 teaspoon dried thyme
- ½ teaspoon dried oregano
- ½ teaspoon onion powder
- ½ teaspoon freshly ground black pepper
- 1 bay leaf
For Thickening the Gravy
- 2 tablespoons cornstarch
- 3 tablespoons cold water
For Garnishing
- 2 tablespoons freshly chopped parsley
- Fresh thyme, optional
- Freshly cracked black pepper
How to Make Slow Cooker Salisbury Steak with Tomato Mushroom Gravy
1. Prepare the Beef Mixture
Place the ground beef in a large mixing bowl.
Add the breadcrumbs, egg, diced onion, milk, Worcestershire sauce, Dijon mustard, garlic powder, onion powder, salt, black pepper, and smoked paprika.
Use clean hands or a fork to combine everything gently.
Avoid overmixing.
Overworking ground beef can make the Salisbury steaks dense rather than tender.
2. Shape the Patties
Divide the mixture into approximately 6 equal portions.
Shape each portion into an oval patty approximately ¾ inch thick.
Press the center of each patty slightly thinner with your fingers.
This helps the patties cook more evenly and reduces excessive puffing.
3. Heat the Skillet
Heat the olive oil in a large skillet over medium-high heat.
Once hot, add the Salisbury steak patties.
Work in batches if necessary.
4. Brown the Patties
Cook for approximately 2–3 minutes per side.
You only need to develop a brown crust.
The patties do not need to cook completely because they will finish in the slow cooker.
Transfer the browned patties to a plate.
5. Add the Mushrooms and Onions
Place the sliced onions and mushrooms in the bottom of the slow cooker.
Spread them into an even layer.
These vegetables will cook underneath the beef and flavor the gravy.
6. Arrange the Salisbury Steaks
Place the browned patties over the mushrooms and onions.
If necessary, overlap them slightly, but avoid stacking them too heavily.
7. Sauté the Garlic and Tomato Paste
Return the skillet to medium heat.
Add the minced garlic.
Cook for approximately 30 seconds.
Add the tomato paste.
Cook for another 1–2 minutes, stirring continuously.
Cooking the tomato paste briefly deepens its flavor.
8. Deglaze the Skillet
Pour approximately ½ cup of the beef broth into the skillet.
Scrape up the browned bits from the bottom with a wooden spoon.
Those browned pieces contain concentrated beef flavor and will make the gravy even better.
9. Build the Tomato Gravy
Add the tomato sauce, remaining beef broth, Worcestershire sauce, Dijon mustard, thyme, oregano, onion powder, and black pepper.
Stir until combined.
Bring to a gentle simmer for approximately 2 minutes.
10. Pour the Gravy into the Slow Cooker
Carefully pour the tomato-beef gravy over the Salisbury steaks.
Add the bay leaf.
Use a spoon to make sure some gravy reaches between the patties and vegetables.
11. Slow Cook
Cover the slow cooker.
Cook on LOW for 5–6 hours or HIGH for approximately 3–4 hours.
LOW heat generally produces the most tender texture.
Avoid opening the slow cooker repeatedly because it releases heat.
12. Check the Salisbury Steaks
Near the end of cooking, check the patties.
Ground beef should reach an internal temperature of 160°F (71°C).
The patties should be tender but still hold their shape.
The onions and mushrooms should be very soft.
13. Remove the Patties
Carefully transfer the Salisbury steaks to a serving platter.
Cover loosely to keep warm.
Remove and discard the bay leaf.
14. Make the Cornstarch Slurry
In a small bowl, whisk together the cornstarch and cold water.
Stir until completely smooth.
Do not add dry cornstarch directly to the gravy because it can create lumps.
15. Thicken the Tomato Mushroom Gravy
Stir the slurry into the hot gravy.
Turn the slow cooker to HIGH.
Cover and cook for approximately 10–15 minutes, or until the gravy thickens.
Stir gently once or twice if needed.
16. Adjust the Gravy
Taste the gravy.
Add additional salt, black pepper, Worcestershire sauce, or herbs if needed.
If the tomato flavor tastes too sharp, a small pinch of sugar can help balance the acidity.
If the gravy is too thick, stir in a little warm beef broth.
17. Return the Steaks
Place the Salisbury steaks back into the slow cooker.
Spoon the mushroom gravy over each patty.
Allow everything to warm together for another 2–3 minutes.
18. Garnish and Serve
Sprinkle with freshly chopped parsley and cracked black pepper.
Serve hot with plenty of tomato mushroom gravy spooned over the top.
What to Serve With Slow Cooker Salisbury Steak
Creamy mashed potatoes are one of the best side dishes because they soak up the savory tomato mushroom gravy beautifully.
Buttered egg noodles are another classic choice.
You can also serve the Salisbury steaks over steamed rice, creamy polenta, or cauliflower mash.
For vegetables, try green beans, roasted carrots, broccoli, peas, Brussels sprouts, or asparagus.
Warm dinner rolls or crusty bread are perfect for soaking up any extra gravy.
Tips for the Best Slow Cooker Salisbury Steak
Use ground beef with some fat for better flavor and tenderness.
Do not overmix the beef mixture.
Shape the patties evenly.
Brown the patties before slow cooking for deeper flavor.
Cook the tomato paste briefly before adding liquid.
Use low-sodium beef broth so you can control the salt level.
Add mushrooms and onions underneath the patties.
Cook on LOW whenever possible.
Use a cornstarch slurry only near the end.
Handle the finished patties gently because they become tender during slow cooking.
Easy Recipe Variations
Creamy Tomato Mushroom Salisbury Steak
Stir ½ cup heavy cream into the finished gravy after thickening.
Keep the heat gentle after adding the cream.
Garlic Mushroom Salisbury Steak
Increase the garlic to 5–6 cloves and add extra mushrooms.
Onion Gravy Salisbury Steak
Double the onions and reduce the tomato sauce for a more onion-forward version.
Spicy Salisbury Steak
Add red pepper flakes, cayenne pepper, or a small amount of hot sauce to the gravy.
Cheesy Salisbury Steak
Top each cooked patty with provolone, mozzarella, or Swiss cheese and allow it to melt before serving.
Bacon Salisbury Steak
Add cooked crumbled bacon to the gravy shortly before serving.
Salisbury Steak with Bell Peppers
Add sliced red or green bell peppers with the onions and mushrooms.
Turkey Salisbury Steak
Replace the ground beef with ground turkey and cook the patties to 165°F (74°C).
How to Store Leftovers
Allow leftover Salisbury steaks and gravy to cool before transferring them to an airtight container.
Store the patties covered with plenty of gravy to help keep them moist.
Refrigerate for up to 3–4 days.
To reheat, place the patties and gravy in a covered skillet over low heat.
Add a splash of beef broth or water if the gravy becomes too thick.
Heat gently until hot throughout.
Individual portions can also be reheated in the microwave in short intervals.
For freezing, transfer cooled Salisbury steaks and gravy to freezer-safe containers.
Freeze for up to approximately 2–3 months.
Thaw overnight in the refrigerator before reheating gently.
Frequently Asked Questions
What is Salisbury steak?
Salisbury steak is traditionally made from seasoned ground beef formed into oval patties and served with gravy.
It is similar to meatloaf in seasoning but cooked as individual steaks.
Can I put raw patties directly in the slow cooker?
Yes, but browning first gives the patties better flavor, color, and structure.
What mushrooms work best?
Cremini, baby bella, or white button mushrooms all work well.
Cremini mushrooms provide a slightly deeper savory flavor.
Why are my Salisbury steaks falling apart?
The beef mixture may not have had enough binder, or the patties may have been handled too aggressively after slow cooking.
Egg and breadcrumbs help keep them together.
Can I make the patties ahead?
Yes.
Shape them up to a day ahead and refrigerate covered.
Brown and slow cook them when ready.
Can I make the gravy without tomatoes?
Yes.
Omit the tomato sauce and paste and increase the beef broth for a more traditional brown mushroom gravy.
Can I add potatoes to the slow cooker?
Yes.
Add small baby potatoes underneath the patties, but make sure they have enough room and cooking time to become tender.
How do I make the gravy thicker?
Use the cornstarch slurry near the end of cooking and allow the gravy to heat on HIGH until thickened.
Final Thoughts
This Slow Cooker Salisbury Steak with Tomato Mushroom Gravy combines tender seasoned beef patties with mushrooms, onions, garlic, tomatoes, Worcestershire sauce, herbs, and rich beef broth for a comforting family dinner.
Slow cooking gives the patties time to absorb the savory gravy while the mushrooms and onions become tender and flavorful.
Serve the Salisbury steaks hot over mashed potatoes, egg noodles, or rice and spoon plenty of thick tomato mushroom gravy over every serving.