This great recipe for carne asada tacos is courtesy of the Calexico Cart in New York City.
Place steak in a gallon-size plastic resealable food storage bag.
In a medium bowl, mix together lime juice, lemon juice, vegetable oil, garlic clove, onion powder, cumin seeds, coriander, garlic powder, and paprika; season with salt and pepper. Pour over steak in plastic bag. Marinate, refrigerated, at least 6 hours and up to overnight, turning every few hours.
Preheat a grill or grill pan over high heat.
Remove steak from marinade and pat dry. Place steak on grill and cook, turning once, until cooked to medium, about 5 minutes per side. Remove steak from grill and let stand 5 to 10 minutes before slicing against the grain.
To assemble tacos, divide meat evenly between tortillas. Top with cabbage, pico de gallo, and guacamole; serve immediately.