Trim fat from steak. Combine steak and next 6 ingredients (steak through hot sauce) in a large zip-top plastic bag. Seal bag; marinate in refrigerator 8 hours, turning bag occasionally. Remove steak from bag, reserving marinade.
Prepare grill or broiler. Place steak on grill rack or broiler pan coated with cooking spray; grill or broil 8 minutes on each side or until desired degree of doneness. Slice steak diagonally across grain into thin strips. Set aside; keep warm.
Pour reserved marinade through a sieve into a small microwave-safe bowl; cover with plastic wrap. Microwave at high 5 minutes or until marinade boils. Divide steak evenly among bottom halves of buns; top each with 2 tablespoons marinade and top half of bun. Garnish with olives, if desired.
Servings/Serving Size:8 servings
Nutrition Facts(per Serving): 302 calories, 29.2 g carbohydrates,43 mg cholesteral, 10.8 g fat, 233 mg sodium, 19.4 g protein, 21 g calcium, 2.4 g iron, 0 g fiber