Slow Cooker Lamb Pot Roast

This slow cooker lamb pot roast is the ultimate no-effort, one-pot meal — perfect for busy days or when you want something deeply nourishing and easy to digest. With just a few minutes of prep in the morning, you’ll come home to tender, fall-apart lamb that doubles as a beautiful, gut-healing meat stock.

Why You’ll Love This Slow Cooker Lamb Roast

If you love a traditional roast but don’t have time to stand over the stove, this slow-cooked lamb is your answer. It’s:

• Naturally produces a nutrient-rich meat stock as it cooks
• Completely hands-off once the slow cooker is set
• Incredibly tender and easy to digest
• Ideal for those following the GAPS Diet or focusing on gut healing
• Budget-friendly and adaptable — you can use lamb shoulder, leg, or even necks

Gut-Healing Benefits of Slow Cooked Lamb

Slow-cooked lamb is not only tender and flavourful — it’s also easier to digest. The long, gentle cooking process releases gelatin and amino acids from the meat and bones, creating a gut-healing stock that supports intestinal repair and overall nourishment.

This recipe aligns beautifully with the GAPS Diet principles: simplicity, digestibility, and nutrient density.

Learn more about how to use meat stock on the GAPS Diet.

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Slow Cooker Lamb Pot Roast Ingredients

• 1.5-2.5kg lamb shoulder or leg roast (neck cuts also work beautifully)
• Filtered water
• 2 large brown onions, thinly sliced
• 6 garlic cloves, diced
• 3-4 springs Rosemary, fresh
• 1 tbsp Salt
• Pepper, to taste

GAPS Tip: If you’re on the GAPS Intro Diet stage 2, place peppercorns in a tea strainer or mesh bag so they can be easily removed after cooking.

Tools You May Need

• Slow cooker
• Knife
• Chopping board

How to Make Slow Cooker Lamb Pot Roast

1. Thinly slice the onions and place at the bottom of the slow cooker along with the garlic and rosemary.

2. Sit the lamb roast on top of the onions. Season with salt and pepper (or peppercorns if on GAPS Intro Stage 2).

3. Pour filtered water around the roast until the onions are covered. Add more water if you’d like extra meat stock to sip later.

4. Set the slow cooker to LOW for 8 hours, or until the lamb is tender and falling off the bone.

Tip: Each time you lift the lid, you’ll add 15 minutes to the cooking time — so let it do its thing undisturbed

Slow Cooker Tips for Perfect Lamb

• Cook fattier cuts low and slow for maximum tenderness and easier digestion.
• Always start with fresh or thawed meat, not frozen.
• Fill your slow cooker no more than two-thirds full.
• Sprinkle with fresh herbs before serving for added aroma and nutrition.

How to Serve Your Lamb Pot Roast

You can serve this roast in a few delicious ways:

• Classic roast style: Slice or shred the lamb and serve with cooked vegetables, ferments, and a warm mug of lamb stock.
• One-pot meal: Shred the lamb and return it to the slow cooker with peas or green beans. Cook for 30 minutes and serve as a comforting stew.

How to store Slow Cooker Lamb Pot Roast

Allow leftovers to cool completely before storing in a sealed container.

• Refrigerator: up to 4 days
• Freezer: up to 2 months

To reheat, gently warm on the stove or in the slow cooker with a little of the reserved stock.

FAQs

You Might Also Like

• Easy Slow Cooker Beef Soup (GAPS Diet)
• Lemon Parsley Chicken Soup
• Meat Stock vs Bone Broth: What’s Better for Gut Healing?

GAPS and Gut and Psychology Syndrome™ are the trademark and copyright of Dr. Natasha Campbell-McBride.

Learn more about the GAPS Diet in the post and read Dr Natasha Campbell-McBride’s books:

• Gut and Physiology Syndrome (Blue Book)
• Gut and Psychology Syndrome (Yellow Book)

Last Updated on 26/10/2025 by Rebecca MacTavish