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Best Slow Cooker Sweet Potato Roast Beef Dinner

Prep Time20 mins
Cook Time8 hrs
Total Time8 hrs 40 mins
Course: Main Course
Keyword: slow cooker, slow cooker roast beef
Servings: 6


  • 2-3 pound beef chuck roast I buy 2 pack at Costco and freeze one
  • Salt & pepper
  • 2 Tbsp. olive oil plus more if needed
  • 2 large red onion sliced
  • 1 fennel thinly sliced
  • 2 shallots thinly sliced
  • 2-3 celery stalks cut in thirds
  • 1 cup of beef stock
  • 1 cup red wine
  • 2 Tbsp. red wine vinegar
  • 2 Tbsp. Worchestersire sauce
  • 2 tsp. thyme
  • Parsley or rosemary for garnish
  • 2-3 small sweet potatoes peeled and cut into 1-inch pieces


  • Heat olive oil in a large frying pan and sear the roast on each side, for about 2 minutes per side, until nicely browned. Heavily salt and pepper both sides. Set aside.
  • In the same pan, add the fennel and shallots and cook on medium until tender, 4-5 minutes, stirring often. Add more oil if needed.
  • Spray the inside of slow cooker with cooking spray. Lay the red onion slices at the bottom. Place the roast beef on top. Place the cooked fennel and shallot on top of the beef. Next, lay celery on top.
  • Mix together the stock, red wine, Worchestersire sauce, and thyme. Generously add salt and pepper. Pour over the beef and vegetables. Salt and pepper again.
  • Cover and cook on HIGH for 4 hours. (Cook on LOW 6-8 hours:) The last hour of cooking time, lay the sweet potatoes on top. Lightly salt and pepper. Cook for one more hour; garnish and serve!