Preheat your oven to 400°F and line a small baking sheet with parchment paper.
Scrub the Russet potato thoroughly, pat dry, and prick several times with a fork to allow steam to escape.
Rub the potato skin with avocado oil and a pinch of sea salt, then bake for 45 to 55 minutes until the skin is crisp and the center is soft.
While the potato bakes, season the chicken breast with garlic powder, sea salt, and black pepper, then pan-sear or bake until it reaches an internal temperature of 165°F.
Allow the chicken to rest for 5 minutes before shredding it into bite-sized pieces using two forks.
Steam the broccoli florets for 3 to 5 minutes until they are bright green and tender-crisp.
Slice the baked potato down the center, fluff the interior with a fork, and stuff it generously with the shredded chicken and steamed broccoli.
Finish the dish by topping with a dollop of Greek yogurt and a sprinkle of freshly chopped chives.