Place the brisket, salsa, taco seasoning in the crock pot.
Squeeze the limes over these ingredients.
Cook on low for 10 hours or on high for 5 hours.
Shred brisket and then stir with juices in crock pot.
Warm the corn tortillas.
Serve the brisket on the tortillas topped with the cheese, cilatnro and jalapeños. Enjoy!
