In a bowl, mix lime juice, lemon juice, orange juice, crushed garlic, chopped onion, tequila, Tabasco sauce, and black pepper.
Add the flank steak to the marinade, turning to coat.
Cover and marinate in the refrigerator for 4 to 6 hours (or overnight if possible), turning occasionally.
Wrap corn tortillas in aluminum foil and place on the grill.
Remove the meat from the marinade, reserving the marinade.
Grill the steak for 12 to 18 minutes, turning and basting halfway through.
Turn the tortillas occasionally on the grill.
Remove the meat from the grill and cut it into thin slices.
Serve the steak slices on tortillas, garnished with salsa and guacamole.
Notes / Tips / Wine Advice:
Wine Advice:Pair this vibrant Carne Asada with a crisp and citrusy white wine such as Sauvignon Blanc or a light-bodied beer like a Mexican lager. The refreshing acidity will complement the citrus marinade and enhance the overall taste experience. ¡Salud!