Heat the olive oil in a medium pot over medium heat and add the cubed chicken breast, onion, carrots, and celery.
Sauté the mixture for 5-7 minutes until the chicken is lightly browned and the vegetables begin to soften.
Pour in the chicken bone broth and bring the liquid to a gentle simmer over medium-low heat.
In a small mixing bowl, whisk together the whole wheat flour, baking powder, dried thyme, sea salt, and black pepper.
Add the Greek yogurt and water to the dry ingredients, stirring until a thick, tacky dough forms.
Using a small spoon, drop rounded tablespoons of the dumpling dough directly into the simmering broth.
Cover the pot with a tight-fitting lid and cook for 10 to 12 minutes without lifting the lid to ensure the dumplings steam properly.
Once the dumplings are firm and cooked through, garnish the dish with fresh parsley and serve warm.