Preparation

• 1 Combine marinade ingredients in small bowl. Place beef steak and marinade in food-safe plastic bag; turn steak to coat. 2 Close bag securely and marinate in refrigerator 6 hours or as long as overnight, turning occasionally.3 Remove steak from marinade; discard marinade. Place steak in center of grid over medium, ash-covered coals; arrange onions and bell peppers around steak.4 Grill flank steak, uncovered, 17 to 21 minutes (skirt steak 10 to 13 minutes) for medium rare (145°F) to medium (160°F) doneness, turning occasionally.5 Grill vegetables 13 to 16 minutes or until crisp-tender, turning occasionally.6 Carve flank steak lengthwise in half, then crosswise into thin slices. (Carve skirt steak diagonally across the grain into thin slices.)7 Cut bell peppers into 1/2-inch strips; coarsely chop onions. Place steak slices on tortillas; top with vegetables.8 Season with salt and pepper, as desired. Serve with guacamole, if desired.
• Source: www.beefitswhatsfordinner.com