Dave'S Flank Steak
["1 1/2 tsp. salt", "3 Tbsp. prepared mustard", "1 to 1 1/2 lb. flank steak", "garlic salt to taste", "1 Tbsp. Worcestershire sauce", "1 large onion, sliced in rings", "3 Tbsp. lemon juice", "fresh pepper to taste"]
["Combine first 6 ingredients.", "Pour over flank steak, covering both sides.", "Cover steak with onion rings and marinate in a closed container overnight.", "Remove onion rings and enough marinade to make it easy to grill.", "Grill for 6 minutes on each side.", "Slice thin, on the diagonal."]
["salt", "mustard", "flank steak", "garlic salt", "Worcestershire sauce", "onion", "lemon juice", "fresh pepper"]