1. Place margarita mix in a large resealable plastic bag or baking dish; add steaks, seal or cover, and marinate in the refrigerator at least 2 hours.
2. Preheat your grill to medium if you want to make these outdoors, or a grill pan or skillet over medium heat to make them inside. Sprinkle both sides of steak with pepper.
3. Cook steaks 4 to 5 minutes per side for medium, or until desired doneness. Remove steaks from grill and sprinkle evenly with coarse salt; serve.
Recipe and Image from the Mr. Food Test Kitchen
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