Crockpot Beef Chuck Roast with Mustard Sauce [Recipe]

Slow Cooker Crockpot Beef Chuck Roast & Mustard Sauce Recipe

Crockpot beef chuck roast with mustard sauce is an oldie but goodie. I’ve made it too many times to count, yet failed to share one of my favorite meals here. Why is that? Truth be told, I aim to make all my photos look like food porn. Turns out making slow-cooked beef chuck roast coated in a creamy mustard sauce look sexy is kinda challenging. I have to remind myself we use crockpots for convenience and taste, not aesthetics. While this recipe won’t win me any food photography awards, it will surely earn a regular spot at your dinner table. It’s honestly a favorite of mine.

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Crockpot Beef Chuck Roast in Creamy Mustard Sauce - Low Carb, Keto Friendly, Gluten-Free

How do you make a creamy mustard sauce?

Heavy cream, mustard, garlic powder, onion, celery, and salt cook low and slow in the crockpot to develop a rich, creamy mustard sauce. As the beef cooks, the juices spill into the sauce to create a savory depth of flavor that is out of this world, lick-your-plate-good.


What to choose instead of stew meat?

Instead of the mixed cuts of stew meat, purchase a beef chuck roast and cut it into bite-sized pieces yourself. This small step will guarantee your meat cooks evenly throughout and that every bite is fork-tender. It’s usually about the same price either way, but stew meat can be a bit of a mixed bag. Beef chuck roast is a sure-fire winner in the crockpot!

What to choose instead of stew meat? How do you make a creamy mustard sauce? Keto, Low Carb, Crockpot recipe

How long do you cook beef chuck roast in the crockpot?

Since beef chuck roast is such a tough cut of meat, it’s best to cook it low and slow. Cover your crockpot and cook on low for 8 to 10 hours and the meat will be perfectly tender and juicy. Slow and steady wins the race!

If you’re short on time, you can cook at higher temperatures for shorter periods, but the results aren’t nearly as good.

How long do you cook beef chuck roast in the crockpot?

Looking for more keto beef recipes? Try my beef cabbage soup or tomatillo chili recipes!

Crockpot Beef Chuck Roast with Mustard Sauce Recipe

Slow Cooker Crockpot Beef Chuck Roast & Mustard Sauce Recipe
5 from 2 votes

Crockpot Beef Chuck Roast with Mustard Sauce

The slow cooker transforms the tough beef chuck roast cut into tender bites coated in a creamy mustard sauce

Course Dinner, Lunch, Main Course, One pot meal
Cuisine American
Special Diet Gluten-Free
Prep Time 10 minutes
Cook Time 6 hours
Total Time 6 hours 10 minutes
Servings 8 Servings
Calories 364 kcal
Author Tasha Metcalf


  • 3 pounds beef chuck roast cut to 1 inch cubes
  • 2 stalks celery chopped
  • 1/2 onion diced
  • 4 oz heavy cream
  • 3 tbsp yellow mustard
  • 1 tsp garlic powder
  • 1 tsp salt


  1. Combine heavy cream, yellow mustard, garlic powder, and salt in a crockpot.

  2. Add beef chuck roast, celery, and onion to the crockpot and mix ingredients thoroughly. 

  3. Cover and cook on high for 4 hours, medium for 6 hours, or low for 8 hours.

Nutrition Facts
Crockpot Beef Chuck Roast with Mustard Sauce
Amount Per Serving
Calories 364 Calories from Fat 225
% Daily Value*
Total Fat 25g 38%
Saturated Fat 11g 55%
Cholesterol 136mg 45%
Sodium 506mg 21%
Potassium 623mg 18%
Total Carbohydrates 1g 0%
Protein 33g 66%
Vitamin A 5.5%
Vitamin C 1%
Calcium 4.7%
Iron 20.1%
* Percent Daily Values are based on a 2000 calorie diet.

Hey babe! I’m Tasha, the lady behind Ketogasm. I love to get creative in the kitchen, geek out on nutritional science, and help badass ladies like you transition to a keto lifestyle. Whether you are healing with food or transforming that beautiful body of yours, I hope you find the resources on this site to be helpful along your way!


  • I’m not one of your “babes”, just an old guy trying low carb for the second time. Last time was close to thirty years ago. Anyway, trying this crock pot beef recipe. It’s been cooking about two hours and smells great. Thanks for the recipe.

  • I tried this recipe and it was incredible. Since I began Keto I’ve not found a delicious gravy recipe to serve over mashed cauliflower. That is until now
    Thank you!

    • Just an update. I’ve added 1 cup of califlower florets(no stems) to the crock pot and once cooked down the gravy was super thick and hearty. This was ketogasmic over mashed califlower. This recipe has become weekly dinner in my house. Thanks again!

  • We did this in the Breville fast slow cooker (pressure cooker with slow cooker option). I dont know if it is because of the device we used or what, but all the rendered fat filled the pot heaps and was significantly more prevalent than the mustard sauce. Is there something that you do to get around this?

  • I made this as called for and was wonderful!!!! Next time a added green beans and horseradish and loved it too!! Thanks so much!

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