Place fresh (thawed) chicken breasts in the bottom of the Crock-Pot.
Top with a can of spicy diced tomatoes flavored with lime juice and cilantro.
Sprinkle with a packet of taco seasoning and a packet of powdered ranch.
Cook on high for a total of 6 hours.
After 4 hours, shred the chicken so that it can soak up the spices and continue cooking it.