Heat the oil in a medium saute pan over high heat. Sprinkle the fish evenly with the salt. Place in the pan skin-side down and cook translucent. Flip, add the butter and let brown. Add the shallots, tomatoes and red onions. Saute until the shallots are translucent and the tomatoes are blistered. Baste the fish with the juices and butter and remove from the pan. Place the fish on a plate and spoon the onion and tomato over and around the fish.
NotesThis recipe was provided by a chef, restaurant or culinary professional and may have been scaled down from a bulk recipe. The Food Network Kitchens have not it for home use and therefore cannot make any representation as to the results.