Step 1

Place the steak and sliced onions in a large bowl or baking dish. In a blender or food procesor blend together the marinade ingredients until smooth. Pour the marinade over the steak and onions, tossing to coat. Cover and refriderate for at least 2-3 hours or up to 24 hours.

Step 2

Heat a grill, grill pan or cast iron pan over medium-high heat. Grill the steak in batches, for 3-4 minutes, undisturbed on each side until it's slightly charred and cooked through. Transfer the cooked steak to a clean tray or platter to rest for 5 minutes before slicing.

Step 3

With a sharp knife, cut the steak against the grain into long strips then cut those strips into a small bite-sized dice.

Step 4

Transfer the diced carne asada to a bowl or platter and top with any residual juices or drippings from the cutting board. Serve with warm corn tortillas, salsa, lime wedges and diced onion and cilantro.