Half Syn One Pot Slow Cooked Beef | Slimming World

This “Half Syn One Pot Slow Cooked Beef”, although easily prepped, requiring little attention while cooking; is non the less a hearty and delicious Slimming World friendly meal enjoyed by the whole family!

Half Syn One Pot Slow Cooked Beef | Slimming World

For the full list of ingredients and comprehensive instructions, please see the recipe card at the end of this post. Before you scroll, there’s important stuff in the blurb 👍

I’ve used sirloin steaks in the recipe, but any lean steak or braising beef will work well (with all visible fat removed), making this a very inexpensive meal.

Half Syn One Pot Slow Cooked Beef | Slimming World

A comforting winter warmer, rich in flavour yet only 1/2 a syn per portion. It’s ideal in these winter months, perfect served up with any seasonal vegetables.

Half Syn One Pot Slow Cooked Beef | Slimming World

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You’ll need a decent sized pan that you can use in the oven or on the hob for this Half Syn One Pot Slow Cooked Beef recipe.

Something like this 28 cm Casserole would be ideal as it can be used on Gas, Halogen, Solid Plate, Ceramic and Induction hobs, as well as in the oven. You can pick one up on Amazon.

Half Syn One Pot Slow Cooked Beef | Slimming World

Whenever we need to replace oil in cooking we use Frylight. Perfect for everyday frying and cooking, it delivers exactly one calorie per spray, which makes it Syn free! The Sunflower or Rapeseed Oil flavours are ideal for this Half Syn One Pot Slow Cooked Beef recipe.

Frylight Find Out More

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Half Syn One Pot Slow Cooked Beef

Votes: 6
Rating: 4.17
Rate this recipe!


Prep Time

Cooking Time

portion 20 minutes 3 hours


Weight Watchers

Slimming World 

485kcal 8

Smart Points (Flex/Freestyle)



Per portion Per portion Per portion
Suitable For Freezing icon Gluten Free icon Dairy Free icon
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  1. Heat oven to 160C/140C fan/gas, and make up the 600ml stock with boiling water
  2. In a large pan (that has a lid and is suitable for hob and oven), warm a few sprays of Frylight, add the onion, garlic, Rosemary, thyme and carrots, frying for a few minutes until the onions soften
  3. Next, add the potatoes stirring through, followed by the mushrooms and continue to cook for 2-3 minutes
  4. Now add the steak, tomato purée, Worcestershire sauce, beef stock, and black pepper
  5. Bring to a gentle simmer, pop on the lid, and transfer to the oven for 2hrs 30 mins, then mix the cornflour with a little water, mix it through, before returning to the oven, uncovered for a further 30 mins, until the meat is really tender and the sauce is thickened
  6. Serve with choice of fresh vegetables

If you make this recipe, snap a pic and hashtag it #pinchofnom — We love to see your creations on InstagramFacebook, & Twitter!


This recipe can be frozen, but please remember to do the following;

- Freeze it as soon as it is cold enough

- Use a container or bag that is suitable for freezing.

- Defrost thoroughly before reheating (you can use the defrost setting on your microwave.)

- Make sure it is piping hot all the way through before serving.


Syn values given are correct at time of writing but may not always be accurate.

This website is UNOFFICIAL and in NO WAY part of or representative of Slimming World. 

We aren’t trained by Slimming World nor authorised to give Slimming World advice. Any advice given here should not replace the advice of your Slimming World consultant.

Ideally, you should check with Slimming world for the most up to date Syn values using official resources such as; the Syns calculator, Syns Online on LifelineOnline or by calling the Syns Hotline on (0906) 851 8518.

Although pinchofnom.com attempts to provide accurate nutritional information, these figures should be considered estimates. Varying factors such as product types or brands purchased, natural fluctuations in fresh produce, and the way ingredients are processed change the effective nutritional information in any given recipe. Under no circumstances will pinchofnom.com be responsible for any loss or damage resulting for your reliance on nutritional information.

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    1. Hi Laura,

      Yes it could be done in the slow cooker. It would probably take 5 -6 hours on medium, or a couple of extra hours on low

  1. Just made this recipe as I thought it looked good, but it was even better than I had hoped and it’s going on my Winter menu.

    I didn’t have any mushrooms so I added a leek and some celery. Totally delicious and really simple. Thanks!

    1. Hi Debbie,
      Yes you can, but you only need a very small amount, and add it a little at a time. You also have to whisk it in really well to get rid of any lumps.

  2. If doing it in the slow cooker do you just put it all in together or do you still fry the onions carrots and the other bits ? Thanks x

  3. Is there a reason you use Sirloin steak, I prefer the taste of rump, if I used this instead would it alter the recipe do you know??

  4. Just had this tonight and it tasted amazing. Only just found your website but I’m so glad I did, you have so many recipes on here I will never run out of tasty ideas now

  5. I made this using 250g skirt (for 2) which was very lean. I cooked it in the Instant Pot and it was so tasty. Cooked the first batch of meat, chopped onion and oxo on stew NPR. Added the veg and sliced onion, another oxo and seasoning and stew setting again but reduced the time slightly NPR added peas and Xanthum gum left it on “keep warm”. It was delicious. There was a small portion left over which I had for lunch the next day. Tasty and cheap!
    Will be a firm favourite. Love your recipes, thank you.

    1. Hi Linda,

      It would really depend on the size of your slow cooker. You could probably need enough liquid to cover the rest of the ingredients.

    1. Hi Michelke
      We haven’t listed a stock cube in the ingredients. We’ve stated that you should use a Knorr Rich Beef Stock Pot. The Knorr website lists these as Gluten Free. Hope that clarifies things.

  6. my husband made this as a welcome home meal after I had been away. It was delicious and it’s success has inspired him to cook more. Thank you PON.

  7. I made this & it was literally to die for!!! Every single recipe that I have tried from this site has become a family favourite, thank you so much!

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Slimming World Recipes
A blog about 3 fat chefs and friends, on their Slimming World Journey!