Preheat your oven to 400°F and line a small baking sheet with parchment paper.
Scrub the Russet potato thoroughly, prick several times with a fork, and rub the skin with olive oil and a pinch of sea salt.
Place the potato on the baking sheet and roast for 45 to 60 minutes, or until the skin is crisp and the inside is tender when pierced.
While the potato is roasting, brown the ground turkey in a non-stick skillet over medium heat until fully cooked.
Season the turkey with garlic powder, black pepper, and the remaining sea salt, then set aside.
Steam the broccoli florets until they are tender-crisp and bright green, then roughly chop them into bite-sized pieces.
Once the potato is finished, slice it down the center and gently fluff the interior with a fork.
Stuff the potato with the seasoned turkey and chopped broccoli, then sprinkle the shredded cheddar cheese over the top.
Return the stuffed potato to the oven for 2 to 3 minutes until the cheese is melted and bubbly.
Finish the dish with a generous dollop of Greek yogurt and a sprinkle of fresh scallions before serving.