Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
1         pound         beef boneless top round steak, about 1 inch thick
1                       Mexican Marinade
6                       flour tortillas (8 to 10 inches in diameter)
1         cup           shredded Cheddar cheese (4 ounces)
1         medium        onion, chopped (1/2 cup)
1         medium        tomato, chopped (3/4 cup)
1         medium        avocado, chopped
3/4       cup           barbecue sauce

1. Pierce beef with fork several times on both sides. Prepare Mexican Marinade in shallow glass or plastic dish or resealable plastic bag. Add beef; turn to coat with marinade. Cover dish or seal bag and refrigerate, turning beef occasionally, at least 8 hours but no longer than 24 hours. 2. Heat coals or gas grill. Wrap tortillas in heavy-duty aluminum foil. 3. Remove beef from marinade; discard marinade. Cover and grill beef 4 to 5 inches from medium heat 25 to 30 minutes for medium doneness, turning once. Add packet of tortillas for last 5 minutes of grilling, turning occasionally,until warm. 3. Remove beef from marinade; discard marinade. Cover and grill beef 4 to 5 inches from medium heat 25 to 30 minutes for medium doneness, turning once. Add packet of tortillas for last 5 minutes of grilling, turning occasionally, until warm. 4. Cut beef across grain into thin slices. Place beef, cheese, onion, tomato and avocado on center of each tortilla. Fold one end of tortilla up about 1 inch over filling; fold right and left sides over folded end, over-lapping. Fold remaining end down. Brush burritos with barbecue sauce. 5. Grill burritos, folded sides down, uncovered 4 to 5 inches from medium heat about 5 minutes, turning once, until hot.