1 lb chicken breast (or thighs)
1 onion, chopped
2 cloves garlic, minced
1 cup diced tomatoes
1 cup chicken broth
1 cup sliced carrots
1 cup sliced celery
1 tbsp dried thyme
1 tsp salt
1/2 tsp pepper
2 tbsp olive oil
1 tbsp lemon juice
Fresh parsley, for garnish