I think this was the only thing my grandfather knew how to cook, I am not sure of the exact recipe he used, but it had a base of minced lamb with pureed potato spread over the top maybe lightly grilled. I find this a bit dull, in the past, I have livened it up by making the base as if a lamb curry (lots of spices) and using sweet potato or plantain on top.
In this case I have used lamb I had cooked previously, with some tocino bacon and onion. I added some brocoli too (something green). Instead of potato I have used squash (maybe Golden Nugget variety) , then grilled it all with some goats cheese in almond and garlic on top. Top food!