Put a pan of salted boiling water on the hob and add the potatoes straight in. They should take about 15-16 minutes to be ready to mash, so if you leave them for 10 minutes, you should be able to get everything finished at the same time. After 10 minutes, have your grill preheated to a high heat, then season the pork on both sides with salt & pepper.
Using a sharp knife, you need to make small incisions into the fat of the pork, as in the photo on the right. Cut through the fat every inch or so. Put the chops under the grill for 3 minutes each side and then wash your hands and get rid of your chopping board.
Whilst the chops are under the grill, put your other pan on the hob on a high heat and go and quarter the mushrooms. Add a swirl of oil to the pan and then drop in the mushrooms. Add a pinch of salt and pepper to the mushrooms and give it a stir. Check the potatoes and if they're ready to mash, drain them and then put them back in the pan. Give the mushrooms another stir and then the pork should be ready to turn. Turn the pork and put them back under the grill.
Once the mushrooms start browning, turn the heat down to low, and if you haven't done the potatoes, drain them now and put them back in the pan. Turn the heat onto low for the potatoes and then mash away all the lumps. Add a knob of butter and then stir it in until melted. Next adding a splash of milk at a time, stir the mash to incorporate the milk until you've got a nice creamy consistency. Set this aside whilst you finish everything else.
It should be time to take the pork out from under the grill, so remove to a board to rest. Turn the heat up high on the mushrooms and add in the spinach, moving it around the pan. The spinach should only take about a minute to wilt, then add in the cream and stir. When the cream starts to bubble, turn the heat off and take everything over to serve.
To serve, put a chop onto one side of your plate and then top with the mushrooms & spinach. Add a nice dollop of mash to the side and you're done!
I hope that you enjoy it.