Marinate the chicken by mixing olive oil, spices, garlic, salt, black pepper, and lemon juice in a bowl. Coat the chicken and refrigerate for at least 1 hour or overnight.
Place the marinated chicken in the slow cooker and pour any remaining marinade over it. Set the slow cooker to low for 6-7 hours or high for 3-4 hours.
Once cooked, shred the chicken with two forks and mix it with the juices in the slow cooker.
Serve the shredded chicken in pita bread or flatbreads with yogurt, parsley, and fresh veggies.