Heat the olive oil in a medium pot over medium heat, then add the diced chicken breast, carrots, celery, and onion.
Sauté for 5-7 minutes until the chicken is browned and the vegetables begin to soften.
Stir in the minced garlic, dried thyme, dried rosemary, sea salt, and black pepper, cooking for 1 minute until fragrant.
Pour in the chicken bone broth and bring the mixture to a gentle simmer.
While the broth simmers, whisk the whole wheat flour and baking powder in a small bowl, then stir in the Greek yogurt until a thick dough forms.
Drop small spoonfuls of the dough into the simmering broth, ensuring they are spaced apart.
Cover the pot with a tight-fitting lid and simmer for 10-12 minutes without lifting the lid until the dumplings are puffed and cooked through.
Serve hot, ensuring each bowl gets a generous portion of the creamy broth and tender dumplings.