Season chicken with salt and pepper.
In a large skillet or cast iron pan over medium-high heat add 1 tbsp olive oil Once the oil the hot add the chicken and cook on each side for 3 to 5 minutes or until the chicken is golden brown. Remove for the skillet and reserve.
In the same skillet add the rest of the olive oil, the onion, carrot and celery, and garlic. Cook for 5 minutes until the vegetables are softened.
Reduce heat and add the broth, diced tomatoes lemon juice, olives, and spices, mix well.
Add the chicken and place the lemon on top, simmer for 20 minutes.
Remove the chicken from the skillet and shred it.
Place the shredded chicken back in the skillet and give a stir to combine everything.
Serve hot, garnish with fresh parsley.