Place the chicken in a gallon size ziplock bag. Set aside.
In a bowl mix the lime juice, zest, olive oil, pepper, and garlic salt.
Chop the cilantro and mix into the other ingredients in the bowl.
Pour the marinade into the zip lock bag.
Remove most of the air from the bag and squeeze to evenly cover the chicken with the marinade.
Flatten the chicken into a single layer and place on a cookie sheet and freeze until solid.
Remove from cookie sheet once frozen. Store in the freezer for up to three months.To Prepare
Grill - heat a grill to medium-high. Cook the chicken until no longer pink in the center or until the internal temperature has reached 165 F. degrees on a meat thermometer.
Skillet- heat 2 tablespoons olive oil in a skillet on medium-high heat, cook each side about 8 minutes or until no longer pink at the thickest section. Or until the thickest section reaches 165 F. degrees on a meat thermometer.
Crockpot- Dump contents into a 4 qt crockpot or larger and cook on low for 6-8 hours