You can sear, saute, grill and even broil meat or veggies and get good taste; but for a really incredible taste that will wow'em... you need a good sauce that will knock their socks off. Is it difficult to do? No, not at all. The best basic sauce is always a combination of rich meat juices, butter and cream.
For something a bit more upscale, get creative. For this dish, you begin by searing and then sauteing, the meat or veggie of choice (if a vegetarian) and in this case - pork loin cut as medallions, in olive oil and coconut oil, 3 tbs each in a large skillet on high and then switch to med. heat. Next, add chopped onion, mushrooms, dried herbs and you can include dried fruits such as dried plums and or also including sun dried tomatoes. Stir and reduce heat to low and simmer for 25 min. Then at the end, add 1 tbs of butter, the same of Dijon mustard and 1/2 cup of heavy cream, stirring on low heat for another 4 min. Finally, turn off the heat, cover and let rest while you prepare a side of potatoes or barley groats.