Preheat gas or charcoal grill to 400°F.
In a bowl, combine salt, jalapeño powder, garlic powder and cumin. Season steaks generously on both sides with seasoning mixture.
Place steaks on oiled grates and grill for approximately 8 minutes on one side, or until moisture starts to pool on the top and beef releases easily from grates with tongs. Flip once, grilling on the other side for 8 minutes or until internal temperature reaches 135°F with meat thermometer inserted into the thickest part of the steak.
Transfer steaks to a platter and let rest for 5-10 minutes before slicing against the grain.
Nutrition information per serving: Calories 90; Total fat 6g (Sat. fat 2g ; Trans fat 0g); Cholest. 30mg ; Sodium 25mg; Total Carb. 1g ; Fiber 0g; Total Sugars 0g; Protein 8g; Vit D (0% DV); Calcium (0% DV); Iron (6% DV); Potas. (2% DV)