Preheat the oven to 350°F.

Place the chicken breasts in a large mixing bowl and massage with the olive oil, salt and pepper. Line a sheet pan with parchment paper and lay chicken breasts on center of sheet.

Bake the chicken on middle rack of oven until it has reached an internal temperature of 165°F, about 35 minutes.

Check to see that chicken is done. Remove from oven or add time as needed.

Place the chicken on a cutting board and shred the meat into bite-sized pieces with two forks. Shred by holding one fork still and using the other to pull the shreds apart.

Mix the shredded chicken and the barbecue sauce in a large mixing bowl and set aside.

Toss together the cabbage, parsley, oil, vinegar, salt, and pepper in a medium mixing bowl.

Assemble each taco by layering chicken, cheese and slaw inside of a tortilla and serve warm.