Rub steaks with Mrs. Dash® Steak Grilling Blend. Heat oil in heavy skillet over medium high heat until oil is hot. Add steaks and cook 4-5 minutes on each side or until desired doneness. Remove steaks and keep warm. Add onion to skillet, sauté for 1 minute. Add broth and stir well, add mustard and cook over high heat for 2 minutes until sauce reduces and thickens a little. Serve sauce over steak.