Preheat your oven to 400°F and line a small baking sheet with parchment paper.
Scrub the russet potato thoroughly, pierce it several times with a fork, and rub the skin with olive oil and a pinch of sea salt.
Bake the potato for 45 to 55 minutes, or until the skin is crisp and the center is soft when pierced with a knife.
While the potato bakes, heat a non-stick skillet over medium heat and add the ground turkey, breaking it up with a spatula.
Season the turkey with garlic powder, sea salt, and black pepper, cooking until browned and fully cooked through.
Steam the broccoli florets in a steamer basket or the microwave with a splash of water until they are bright green and tender-crisp.
Once the potato is done, slice it down the center and fluff the interior flesh with a fork.
Stuff the potato with the seasoned ground turkey and steamed broccoli florets.
Top with shredded sharp cheddar cheese, a dollop of plain Greek yogurt, and a sprinkle of sliced green onions before serving.