Marinade and Sauce:
Combine barbecue sauce, pineapple, chile powder, onion and garlic in blender or food processor container. Cover; process 1 minute or until smooth, scraping sides of container as needed. Pour half into bowl, cover and refrigerate.
Place steak and remaining barbecue marinade in food-safe plastic bag; turn steak to coat. Close bag securely and marinate in refrigerator 15 minutes to 2 hours. Place steaks on grid over medium, ash-covered coals. Grill, covered, 12 to 16 minutes for medium rare (145°F) to medium (160°F) doneness, turning occasionally. Keep warm.
Step 3Spread reserved barbecue mixture evenly over cut sides of each roll. Thinly slice steak. Place slices on bottom of rolls. Top with pineapple, onions, and lettuce.
Nutrition information per serving: 765 Calories; 252 Calories from fat; 28g Total Fat (10.2 g Saturated Fat; 1.7 g Trans Fat; 2.2 g Polyunsaturated Fat; 11.8 g Monounsaturated Fat;) 144 mg Cholesterol; 1001 mg Sodium; 70.5 g Total Carbohydrate; 3.5 g Dietary Fiber; 55 g Protein; 9.4 mg Iron; 841 mg Potassium; 12.5 mg NE Niacin; 1 mg Vitamin B6; 10.3 mcg Vitamin B12; 16.6 mg Zinc; 103.5 mcg Selenium; 200 mg Choline.
This recipe is an excellent source of Protein, Iron, Niacin, Vitamin B6, Vitamin B12, Zinc, Selenium, and Choline; and a good source of Dietary Fiber, and Potassium.