Peel the onions, cut them in half and slice them into 1cm (½") thick half-moon shapes.
Heat the oil in a small tagine or small frying pan (that you have a lid for) over a low-medium heat.Add the cinnamon bark and the onions, then cook for 10 minutes. Do not stir; you want to get a nice golden colour on the base layer of onions. If they brown too quickly, reduce the heat a little.
If the dates are not pitted, remove the stone and then tear the dates into strips.
Place it in a bowl with the almonds and dates.Sprinkle over the cumin, turmeric, coriander, dried mint, salt and black pepper, then pour in the lemon juice and the honey and give everything a mix.
Add the lamb to the pan or tagine and pour in enough water to create a 1cm (½") layer in the pan or tagine, this will be around 75ml (⅓ Cup).
Add a lid, reduce the heat to very low and cook for 90 minutes to 2 hours.
Remove the lid, give everything a stir and turn the heat up to high for 5 minutes to reduce the cooking liquid a little.
Serve with lots fo freshly chopped parsley and a generous sprinkle of zaatar.