Fry chopped onion in a little oil at low heat with the garlic, adding the cinnamon after the onion has become translucent

After one minute, add the lamb and fry until mostly browned

Add roughly chopped peppers and the paprika

After a minute, add the chickpeas and tomatoes. Add the water (that's one empty tin of water).

Cover and simmer for about an hour, until the meat is tender and the sauce is dark and well reduced.