Prepare all your ingredients and then heat your Stok Gridiron grill to 400 with your Stok Wok insert in place. Begin to brown the ground beef.
Continue to cook the beef until all the pink color is gone.
Add salt to meat.
Add fresh ground pepper to the meat.
Warm the shells directly on the grill beside the meat as it simmers.
Put the meat into the shells.
Add sliced onion.
Add the chopped cilantro.
Squeeze fresh lime over the taco and it is ready to serve!