Slow Cooker Lamb Shank and Mushroom Casserole (GAPS/Paleo)

Ingredients

• 1-2 Tbsp extra virgin olive oil
• 1.5 kg grass fed lamb shanks
• 2 med onions (diced)
• 3 cloves fresh garlic
• 4 carrots (diced)
• 2 stalks celery (diced)
• 1 green capsicum (diced)
• 500 g mushrooms (diced)
• 0.5 cups dry red wine
• 1.5 cups home-made stock (you can use beef, lamb or chicken stock)
• 400 g tin diced tomatoes (organic if possible)
• 3 Tbsp tomato paste (organic if possible)
• 2 sprigs parsley
• 0.5 tsp cinnamon
• 0.5 tsp celtic sea salt or himalayan salt
• pepper (to taste)