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Slow Cooker Roast Beef

Slow Cooker Roast Beef will have your mouth watering right up until mealtime! Cooked low and slow, this tender beef is seasoned perfectly with fresh rosemary, creating the most amazing aroma in your kitchen! Pair a slice of roast beef with mashed potatoes and veggies for a simple, traditional meal for special occasions or even just a weeknight.

Close up of Sliced Rosemary garlic Slow Cooker Roast Beef served on cutting board

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What’s To Love About This Recipe 

  • This traditional roast doesn’t have to be reserved for Sundays! It’s simple enough to prepare for any day of the week but is also an elevated meal that could work for holiday meals and special gatherings.
  • With the slow cooker, preparing a delicious roast does not have to take lots of effort! All you need is a few minutes to brown it to develop a seasoned crust. Then, set it and forget it for the rest of the day.
  • This slow cooker version of roast beef is the best choice to ensure the meat doesn’t turn out tough or chewy. You can cook it low and slow until it is perfectly tender.
  • Roast beef from a round roast is a nice cut for slow cooking because it has minimal fat and won’t be greasy at the end. With just a few added seasonings, oil, and a splash of balsamic vinegar, you can achieve an incredibly delicious roast with little effort!

Ingredients Needed 

  • Round beef roast – I use a 2-pound eye of round beef roast in my 4-quart multicooker. I like a less fatty cut of beef for this recipe, which is what you get with the eye of round. Other options that will work are top round, bottom round, or you could even go with a rump roast.
  • Olive oil – Use some olive oil to help brown the meat and create a seasoned crust that keeps the meat tender and juicy. 
  • Fresh rosemary – Use 3 stalks of fresh rosemary and remove the leaves to chop up for the seasoning.
  • Minced garlic – Minced garlic is an easy addition and adds texture to the seasoning rubbed on the roast. 
  • Sea salt – Sea salt also adds some extra texture to the seasoning rub.
  • Fresh ground pepper– Use a pepper grinder to crush peppercorns or coarse pepper for a burst of fresh spice.
  • Balsamic vinegar – Use balsamic vinegar to get all the browned bits from the pan or multicooker, and add every bit of delicious leftover glaze!
Ingredients on a counter including a 2-pound eye of round beef roast (or rump roast if preferred), olive oil, fresh rosemary stalks, minced garlic, sea salt, freshly ground pepper, and balsamic vinegar.

Note: While the general serving “rule” is about ½ pound of boneless roast per person, I find you can estimate slightly less, especially considering extra side dishes and whether or not you are feeding kids. I always like to have some leftover roast for my family. Since we usually have 3 people eating dinner on any given night, a 2-3 pound roast is perfect. 

How To Make Slow Cooker Roast Beef

  1. Rub the roast all over with olive oil.
2-pound eye of round beef roast (or rump roast if preferred) being seasoned with a brush of olive oil, fresh rosemary stalks, minced garlic, sea salt, freshly ground pepper, and balsamic vinegar.
  1. Strip rosemary leaves from the stalk, then chop. Combine the chopped leaves with garlic, sea salt, and pepper.
  2. Rub the seasonings around the outside of the roast to form a crust.
  1. Preheat a skillet or multicooker to 400 ℉.
  2. Add the roast and sear on each side until lightly browned (4-6 minutes).
Cooked roast beef on skilled seasoned
  1. Deglaze the pan with balsamic vinegar and transfer all contents to the slow cooker.
Skilled with remnants of rosemary garlic seasoning charred on the bottom
  1. Cover and cook on low for 8-9 hours.
  2. Remove the roast from the slow cooker and let it rest for 15-30 minutes, then slice to serve.
Rosemary garlic Slow Cooker Roast Beef served on plate

pro Tips

  • Don’t skip the browning step! You will definitely want the outside of the roast beef to have a nice crust or sear, which helps seal the juices. Use your multicooker to save an extra dish to clean, or a simple skillet will work just fine, too!
  • Using balsamic vinegar to deglaze the pan adds a nice burst of flavor to the roast. Deglazing is also important for the multicooker to prevent any burning on the bottom of the pan.
  • Be sure to let the meat rest for the allotted time to preserve the juiciness of the meat!
  • If the roast is still tough, cook it longer until it is easy to shred. Beef will become shreddable at about 205 ℉.
  • Cook to 145 ℉ for medium or 150 ℉ for medium-well. Keep in mind, for slow cooking, judge doneness more by the tenderness of the meat and cook longer if needed.

Recipe Substitutions and Variations

  • Other meat cuts that work well for this roast beef recipe are top round, bottom round, or a rump roast.
  • Try swapping out the fresh rosemary for other favorite fresh herbs like thyme or sage.
  • Add some root veggies like roughly chopped carrots or parsnips to cook with the beef. Be sure not to overcrowd the slow cooker – the vegetables should fit comfortably around the roast.
  • If you’d like to make gravy to serve with the roast beef, save the cooking liquid, heat it, and whisk it with cornstarch or your preferred flour until it reaches the right thickness.

How To Serve Slow Cooker Roast Beef

In my family, we’re accustomed to a holiday roast for all of our special occasions. Maybe you’ll want to try this recipe for your gatherings, too!

Whether a fancy dinner or just a weeknight, a potato or veggie side is a must. Try Slow Cooker Creamy Garlic Mashed Potatoes or Slow Cooker Gratin Potatoes with a veggie like Lemon Pepper Roasted Asparagus. Add some toasty bread and a side salad if you like!

Leftover roast beef will also be delicious on cold sandwiches or toasted sandwich melts with a sharp or smoky cheese and a rustic mustard. 

Sliced Rosemary garlic Slow Cooker Roast Beef served on plate with mashed potatoes

Storing and Reheating

Store leftover roast beef in an airtight container in the fridge for up to 3-4 days. Freeze sliced roast beef in a sealed container for up to 3 months.

Reheat in a skillet on low or in the microwave on low power so it does not overcook. If needed, add a bit of water or broth to keep the meat moist while it reheats.

Close up of Sliced Rosemary garlic Slow Cooker Roast Beef served on cutting board

Slow Cooker Roast Beef

Jennifer Draper
Slow Cooker Roast Beef will have your mouth watering right up until mealtime! Cooked low and slow, this tender beef is seasoned perfectly with fresh rosemary, creating the most amazing aroma in your kitchen! Pair a slice of roast beef with mashed potatoes and veggies for a simple, traditional meal for special occasions or even just a weeknight.
4.07 from 30 votes
Save
Prep Time 30 minutes
Cook Time 9 hours
Resting Time 30 minutes
Total Time 9 hours 30 minutes
Course Main Course
Cuisine American
Servings 8
Calories 36 kcal

Equipment

  • Skillet
  • multicooker or slow cooker

Ingredients
  

  • 2- pound eye of round beef roast or rump roast if preferred
  • 2 tablespoons olive oil
  • 3 stalks fresh rosemary
  • 4 teaspoons minced garlic
  • 1 teaspoon sea salt
  • 1/2 teaspoon fresh ground pepper
  • 1 tablespoon balsamic vinegar

Instructions
 

  • Rub roast all over with olive oil.
  • Strip rosemary leaves from stalk, then chop. Combine chopped leaves with garlic, sea salt, and pepper.
  • Rub seasonings around outside of roast to form a crust.
  • Preheat skillet or multicooker to 400 ℉.
  • Add roast and sear on each side until lightly browned (4-6 minutes).
  • Deglaze pan with balsamic vinegar and transfer all contents to slow cooker.
  • Cover and cook on low for 8-9 hours.
  • Remove roast from slow cooker and let rest for 15-30 minutes, then slice to serve.

Notes

  • Store in the fridge for up to 3 days and in the freezer for up to 3 months. Reheat with a splash of liquid as needed to keep the meat moist.
  • Cook to 145 ℉ for medium or 150 ℉ for medium-well. Keep in mind, for slow cooking, judge doneness more by the tenderness of the meat and cook longer if needed.
  • If the roast is still tough, cook until it is easy to shred (usually around 205 ℉.)

Nutrition

Calories: 36kcalCarbohydrates: 1gProtein: 0.1gFat: 4gSaturated Fat: 0.5gPolyunsaturated Fat: 0.4gMonounsaturated Fat: 3gSodium: 292mgPotassium: 13mgFiber: 0.1gSugar: 0.3gVitamin A: 12IUVitamin C: 1mgCalcium: 5mgIron: 0.1mg
Tried this recipe?Mention @slowcookergourmet or tag #slowcookergourmet!
Important nutritional disclaimer

Slow Cooker Roast Beef FAQs 

  • What is the best cut of meat for a slow cooker roast beef? The best meat for slow cooker roast beef will have some fat, and be somewhat lean. The best options are a type of round roast, such as top round, bottom round, or eye of round (what I chose), or you could use a rump roast.
  • What should you do if the roast beef is still tough after slow cooking? If the roast beef is still tough, it has not cooked long enough. Beef will become shreddable at about 205 ℉, so give it another 30 minutes to an hour of cooking and test it again.
  • Can slow cooker roast beef be cooked on high instead of low? You can cook roast beef on high, but it may not turn out as tender and tends to dry out a bit faster. For best results, cook the meat on low for 8-9 hours.
  • Do you need liquid in a slow cooker for roast beef? You should not need much liquid to slow-cook meat. For this recipe, you will only need the small amount of balsamic vinegar to deglaze the pan. In general, adding liquid depends on the type of meat and the desired texture and result.

More Slow Cooker Beef Recipes

40 Comments

  1. Can I use all of the juice left in the pan to make gravy or just a portion of it? This is the third time I’ve made it with great results. I should have turned it over though but forgot so the top is a bit crusty!
    Please let me know…about the gravy.
    Lorna

    1. Yes, just take the excess oil off the top then strain it and then add beef broth cornstarch slurry, comes out perfect every time, enjoy

  2. I’m not sure how the end result will taste, but searing on a skillet at med-high for 4 minutes burned my garlic and rosemary. Maybe I should have used med-low….

    1. Hi Daniel! Thank you for taking the time to leave your feedback. This is a good point, every stove and skillet can differ a bit, so always monitor the food and use your best judgement to make adjustments to avoid burned food!

    2. Hi Jennifer, I have just started my slow cooker with 1 shallot halved and tossed in along with half a red onion rough chopped. Pepper corns and salt. The roast now sitting on top. I added cup of red wine and had Brussels sprouts water to make the gravy! BISTO 😀 (It’s a Brit thing)
      Will add mushrooms, cauliflower and carrots later.
      Sear the meat BEFORE you add the garlic slivers and rosemary. Only 7 hours to wait?🤷🏼‍♂️
      Merry Christmas to all!
      Ray

  3. I don’t know what these other people are people are talking about this was the best roast I have ever made. Everyone in my family said it was the best thing I have ever cooked for a Christmas dinner. The only thing I did different was I added a cup of beef broth in the bottom of the crockpot. I would make this again and again and again. Oh and I used a rump roast. Thank you so much for this recipe!!!

  4. 3 stars
    Thanks for this recipe, my family loved it (after modifications mentioned in comments – consider updating base recipe)

    I followed recipe, added 1c veg broth, and cooked on low in a 4qt slow cooker for about 4 hours and got a lovely medium roast. Made a simple gravy with corn starch and olive oil, and the family raved about it.
    If I had cooked for 8-9 hours it would have been very, very well done, with or without broth. Perhaps equipment matters, as does family preference.

  5. I just prepared a 3+ lb roast for 4 adults and 2 toddlers. There was enough left for 2 leftover servings. I think you need to know your audience for portions.

4.07 from 30 votes (24 ratings without comment)

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