Preheat your oven to 400°F (200°C).
Scrub the Russet potato clean, prick it several times with a fork, and rub the skin with olive oil and a pinch of sea salt.
Place the potato directly on the oven rack and bake for 45 to 50 minutes until the skin is crisp and the inside is tender.
While the potato bakes, heat a non-stick skillet over medium heat and brown the ground turkey until fully cooked, breaking it into small crumbles.
Steam the broccoli florets until bright green and tender, then finely chop them into bite-sized pieces.
Once the potato is done, slice it in half lengthwise and carefully scoop out the flesh into a mixing bowl, leaving a thin layer against the skin to maintain the boat shape.
Mash the potato flesh with the Greek yogurt, garlic powder, and black pepper until the texture is smooth and creamy.
Stir the cooked ground turkey and chopped broccoli into the mashed potato mixture until well combined.
Spoon the filling back into the potato skins, sprinkle with grated Parmesan cheese, and return to the oven for 5 to 8 minutes until the cheese is melted.
Garnish with fresh chopped chives and serve immediately while hot.