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slices of medium rare roast beef on a plate with whole grain mustard

ROAST BEEF IN A SLOW COOKER

If you’re looking for a simple and delicious way to prepare roast beef, look no further than your trusty slow cooker. With just a few ingredients and minimal effort, you can enjoy a tender, flavourful roast beef dinner that practically cooks itself!
Prep Time 10 minutes
Cook Time 2 hours 20 minutes
Total Time 2 hours 30 minutes
Servings 6 Servings

Ingredients

  • 1 2 lb (1 oz.) Beef Outside Round Roast
  • 2 large Onions sliced
  • 4 Cloves Garlic minced
  • 4 large Carrots cut into small chunks
  • 2 tbsp Extra Virgin Olive Oil
  • 1 cup Beef Broth
  • ½ cup Red Wine optional, for extra flavour
  • 1 tbsp Worcestershire Sauce
  • 1 tbsp Balsamic Vinegar
  • 1 tbsp Tomato Paste
  • A few sprigs Fresh Herbs (I used rosemary, thyme, parsley, and dill)
  • Salt and Pepper to taste

Instructions

  • In a large skillet, heat 1 tbsp of olive oil over medium heat. Add the sliced onions and cook until they start to caramelize, about 5-7 minutes.
    sliced raw white onions in a skillet
  • Add the minced garlic and cook for an additional 1 minute.
    cooked sliced onions and minced garlic in a cast iron skillet
  • Transfer the onions and garlic to the slow cooker.
    cooked sliced onions and minced garlic in a slow cooker
  • Add the carrot chunks (stir to submerge). Sprinkle the fresh herbs sprigs all over.
    carrot chunks, fresh herbs and cooked onions in a slow cooker
  • In the same skillet, heat the remaining 1 tbsp of olive oil over medium-high heat. Pat the beef roast dry with clean paper towel.
    hand with a paper towel patting a raw roast beef dry
  • Season generously with salt and pepper.
    raw roast beef seasoned with salt and pepper on a plate
  • Sear the roast on all sides until browned, about 3-4 minutes per side.
    roast beef searing in a cast iron skillet
  • Transfer the seared roast to the slow cooker, placing it on top of the veggies and herbs.
    seared roast beef sitting on fresh herbs, onions and carrots in a slow cooker
  • In the skillet, add the beef broth, red wine (if using), Worcestershire sauce, balsamic vinegar, and tomato paste. Stir well to combine, scraping up any browned bits from the bottom of the skillet. Pour the sauce over the beef in the slow cooker.
    brown liquid broth with black bits steaming in a cast iron skillet
  • Cover the slow cooker and cook on low for about 2-3 hours. Start checking the internal temperature of the roast at the 2-hour mark. For medium rare, you want an internal temperature of 130°F (54°C).
    cooked roast beef and veggies in a slow cooker
  • Once the roast reaches the desired temperature, remove it from the slow cooker and let it rest for 10-15 minutes. The temperature will rise slightly during resting.
    roast beef resting on a cutting board
  • Slice the roast thinly against the grain.
    sliced medium rare roast beef on a cutting board
  • Serve the roast beef with the carrots and onions, spooning some of the flavourful sauce over the top. Garnish with fresh herbs for an extra burst of flavour.
    sliced medium rare roast beef on a plate with onions and carrots

Notes

Use a meat thermometer to ensure you get the perfect medium rare temperature.
If the vegetables are not tender enough after the roast is done, you can continue cooking them in the slow cooker while the roast rests.

Nutrition

Serving: 1Serving | Calories: 111kcal | Carbohydrates: 12g | Protein: 2g | Fat: 5g | Saturated Fat: 1g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 3g | Cholesterol: 0.1mg | Sodium: 244mg | Potassium: 335mg | Fiber: 2g | Sugar: 6g | Vitamin A: 8063IU | Vitamin C: 8mg | Calcium: 40mg | Iron: 1mg
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