I just fried it in frylight. During frying I ground some BBQ spices over it using a BBQ spice grinder that has a mix of coriander, cumin, black peppercorns and sea salt grains in it.
Got about 5 medallions in the pack, 2 big ones, 3 smaller ones. Did it for about 4-5 mins each side, turned out really moist, juicy and medium.
Made it with SW cajun wedges, which I make just like chips, only I cut them into bigger chunks, parboil then whack in the oven with mushrooms and chopped red onion. I squirt the whole lot with frylight then sprinkly cajun seasoning over the top. Squirt with frylight again and whack in the oven for half an hour.
Serve with side salad of your choice. OH likes grated cheese on his wedges too, but I gave this a swerve.