Try this recipe next time you're at the grill. Beef Flat Iron steak is marinated in a pineapple-barbecue sauce, grilled and served on bolillo rolls.
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.