Slow Cooker Beef Roast with Mushrooms and Onion Gravy

Slow Cooker Beef Roast with Mushrooms and Onion Gravy

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Slow Cooker Beef Roast with Mushrooms and Onion Gravy

Slow Cooker Beef Roast with Mushrooms and Onion Gravy

It’s the kind of meal that wraps you in nostalgia — juicy, fork-tender beef surrounded by caramelized onions, earthy mushrooms, and a silky homemade gravy that’s pure flavor bliss. And the best part? You barely lift a finger. The slow cooker does the heavy lifting while you get to enjoy the payoff.
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Prep Time 15 minutes
Slow Cooker: 8 hours
Total Time 8 hours 15 minutes
Course Main Course
Cuisine American
Servings 6 Servings

Equipment

Ingredients
  

For the Roast

  • 2 pounds beef chuck roast trimmed of excess fat
  • 2 cups sliced onions yellow or red
  • 2 cups sliced mushrooms cremini or button
  • 3 garlic cloves minced
  • 1 cup beef broth
  • ¼ cup tomato sauce
  • 1 tablespoon Worcestershire sauce
  • 1 tablespoon white or apple cider vinegar
  • 1 teaspoon salt
  • 1 teaspoon black pepper
  • ½ teaspoon fresh thyme chopped (or ¼ teaspoon dried)
  • 2 teaspoons fresh parsley chopped

For the Gravy (Optional)

  • 1 to 2 tablespoons all-purpose flour or cornstarch for thickening

Instructions
 

Step 1: Prepare the Sauce

  • In a bowl, whisk together tomato sauce, beef broth, minced garlic, thyme, Worcestershire sauce, and vinegar until well combined. Set aside.

Step 2: Season the Roast

  • Pat the chuck roast dry using paper towels.
  • Season generously with salt and black pepper on all sides. Trim off any large sections of fat if needed.

Step 3: Assemble the Slow Cooker

  • Spread half of the sliced onions and half of the mushrooms across the bottom of your slow cooker.
  • Pour half of the prepared sauce over the vegetables.
  • Place the seasoned roast on top.
  • Add the remaining onions and mushrooms, then pour in the rest of the sauce to cover everything evenly.

Step 4: Cook the Roast

  • Cover the slow cooker and cook on LOW for 7–8 hours or HIGH for 4 hours, until the beef is fork-tender and easily pulls apart.
  • The mushrooms and onions will create a flavorful, savory base for your gravy.

Step 5: Make the Gravy (Optional)

  • Once the roast is done, transfer the meat to a serving platter and keep it warm.
  • Carefully pour the cooking liquid and vegetables into a saucepan.
  • In a small bowl, whisk 1 tablespoon of flour or cornstarch per 1 cup of cooking liquid until smooth. Add the mixture to the saucepan.
  • Simmer over medium heat, stirring often, until the sauce thickens into a rich gravy.

Step 6: Serve and Garnish

  • Slice or shred the roast, then spoon the mushroom-onion gravy over the top.
  • Sprinkle with fresh parsley and serve warm with mashed potatoes, rice, or buttered noodles for a cozy and satisfying meal.
Keyword #northeastnosh #slowcookermeals #slowcooker #beefroast #comfortfood #food #foodie #slowcookerbeefroast
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