Slow-cooked lamb with onions and thyme

Looking for an effortless yet tasty recipe? Look no further! Our slow-cooked lamb with onions and thyme is the perfect choice. With just five ingredients and one pot, making this delicious dish couldn’t be easier. The absolutely tender lamb meat offers a delicious filling that is simply filling. What’s even better is that it practically cooks itself, leaving you time to relax or attend to other tasks. Treat yourself to this delicious meal and let the slow cooker do all the work for you. It’s a guaranteed winner!


  • half a leg of lamb (approx. 1¼kg/2lb 12oz)
  • 1 kg onions (approx. 4 large ones)
  • a handful of thyme sprigs
  • 300 ml red wine
  • large handful of parsley

Preparation steps

  1. Preheat the oven to 160°C/fan 140°C/gas 3.
  2. Wipe the lamb all over and season well.
  3. Heat 3 tablespoons olive oil in a large, heavy, ovenproof casserole dish.
  4. Add the meat and fry on all sides over a fairly high heat for about 8 minutes, turning as you go, until well browned.
  5. Place the meat on a plate.
  6. Cut the onions into thin slices.
  7. Add the onions to the pan and fry until soft and brown, about 10 minutes.
  8. Add a few sprigs of thyme and cook for another minute or so.
  9. Season the onions with salt and pepper.
  10. Place the lamb on top of the onions.
  11. Add the wine.
  12. Cover the casserole tightly.
  13. Bake for 3 hours.
  14. If you prefer, you can prepare this step up to 2 days in advance and then reheat for 45 minutes.
  15. Strip the leaves from 2 thyme sprigs and chop them together with the parsley.
  16. Sprinkle the herb mixture over the lamb before serving.

Nutritional Information

731 39g 19g 21g 0g 4g 63g 0.87g

Equipment and tools

  • Slow cooker
  • Sharp knife
  • cutting board

Allergen information

This recipe contains no known allergens. However, please check the specific ingredients used to ensure they are suitable for your dietary restrictions.

Storage and leftovers

Any leftovers can be stored in an airtight container in the refrigerator for up to 3 days. To reheat, gently warm the lamb and onions in a saucepan over low heat until warmed through. Alternatively, freeze leftovers in a freezer-safe container for up to 3 months. Thaw in the refrigerator overnight before reheating.

The Health Benefits of Slow Cooked Lamb with Onions and Thyme

Slow-cooked lamb with onions and thyme is a delicious and nutritious dish that offers numerous health benefits. This recipe combines the succulent flavors of lamb with aromatic onions and thyme to create a filling and healthy meal. Let’s take a closer look at the health benefits provided by the main ingredients of this delicious dish:


Lamb meat is a rich source of high-quality protein, which is essential for building and repairing tissue in our bodies. It contains all the essential amino acids required for proper growth and development. In addition, lamb is rich in various vitamins and minerals such as vitamin B12, zinc, iron and selenium.

Vitamin B12 is necessary for maintaining healthy nerves and red blood cells, while zinc supports the immune system and aids wound healing. Iron is crucial for the production of hemoglobin, which carries oxygen to all parts of the body. Selenium, on the other hand, acts as a powerful antioxidant and protects our cells from damage caused by harmful free radicals.


Onions are not only a versatile ingredient that adds flavor to dishes, but they also provide numerous health benefits. They contain a compound called quercetin, which has anti-inflammatory properties and may help reduce the risk of chronic diseases such as heart disease and certain cancers. Onions also provide fiber, which supports a healthy digestive system and helps regulate blood sugar levels.

Additionally, onions are a good source of vitamin C, which plays an important role in supporting immune function and promoting collagen production for healthy skin. They also contain various antioxidants that help protect our cells from oxidative stress and prevent damage.


Thyme is an herb known for its aromatic taste and medicinal properties. It contains compounds such as thymol, which have antiseptic and antimicrobial properties and therefore have a positive effect on maintaining healthy respiratory tract. Thyme is also rich in antioxidants, which help fight inflammation and protect against oxidative stress.

In addition, thyme contains important vitamins such as vitamin C, vitamin A and vitamin K. Vitamin C strengthens the immune system, while vitamin A promotes healthy eyesight and skin. Vitamin K is important for blood clotting and bone health.

Red wine and parsley

This recipe also calls for red wine and parsley. Red wine, when consumed in moderation, has been linked to several health benefits, including a reduced risk of heart disease and certain cancers thanks to its antioxidants. Parsley, on the other hand, is a great source of vitamin K, vitamin C, and other beneficial compounds that support bone health, immune function, and overall well-being.

By combining these incredible ingredients, slow-cooked lamb with onions and thyme not only satisfies the taste buds but also offers a range of health benefits. From the protein-rich lamb to the anti-inflammatory properties of onions to the antioxidants in thyme, this dish is a nutritional powerhouse

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