Combine the paprika, thyme, cayenne and 1 teaspoon salt in a bowl; sprinkle on both sides of the salmon. Heat the vegetable oil in a large skillet over medium heat. Add the salmon and cook until browned and just cooked through, 3 to 4 minutes per side.
03Stir the scallions into the potatoes and top with the remaining 1 tablespoon butter. Serve with the salmon and lime wedges.