Preheat your oven to 400°F and pierce the Russet potato several times with a fork.
Rub the potato skin with olive oil and a pinch of sea salt, then place it directly on the oven rack to bake for 45-50 minutes until the center is soft.
While the potato bakes, heat a non-stick skillet over medium heat and add the ground turkey.
Season the turkey with garlic powder, smoked paprika, remaining sea salt, and black pepper, cooking until browned and fully cooked through.
Once the potato is finished, 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 until smooth and creamy, then stir in the cooked ground turkey.
Spoon the turkey and potato mixture back into the skins and top with shredded sharp cheddar cheese.
Place the boats on a baking sheet and return to the oven for 5 minutes, or until the cheese is melted and bubbly.
Garnish with thinly sliced green onions and serve warm.