Trim fat from beef steaks. Cut both sides of beef in diamond pattern 1/8 inch deep. Place in shallow glass dish. Mix remaining ingredients except Garlic Pitas; pour over beef. Cover and refrigerate at least 4 hours but no longer than 24 hours, turning occasionally.
Remove beef from marinade; reserve marinade. Cover and grill beef 6 inches from medium coals about 12 minutes for medium doneness, turning after 6 minutes and brushing frequently with marinade. Discard any remaining marinade. Cut beef diagonally into thin slices; serve on Garlic Pitas.
Garlic Pitas: Mix margarine and garlic; spread over pita breads. Wrap in aluminum foil and heat on grill about 5 minutes or until margarine is melted. Yield: 10 servings Typed in MMformat by cjhartlin@msn. Com Source: Betty Crocker