Spray a cold 8-inch skillet with nonstick spray coating. Heat skillet over medium-high heat. Add steaks and cook for 2 to 3 minutes on each side or until steaks are to desired doneness (160 degrees F for medium doneness). Transfer steaks to a serving platter.
For sauce, carefully add sherry to the skillet. Then add salt, pepper, and tarragon. Cook and stir for 1 minute. To serve, pour sauce over steaks and sprinkle with snipped chives or parsley. Makes 2 servings.