Combine cumin and garlic; press onto beef steaks. Place steaks on grid over medium, ash-covered coals. Grill, uncovered, 15 to 18 minutes for medium rare to medium doneness, turning occasionally.
Squeeze lime wedges over steaks. Carve steaks; season with salt. Serve with guacamole.
To broil: Place steaks on rack in broiler pan so surface of beef is 3 to 4 inches from heat. Broil 13 to 17 minutes for medium rare to medium doneness, turning once.
2 Boneless beef strip steaks, cut 1-inch thick (1-1/4 lb.)
2 Teaspoons ground cumin
2 Cloves garlic, minced
2 Lime wedges
Salt to taste