Preheat your oven to 400°F and pierce the Russet potato several times with a fork.
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 avocado oil in a medium skillet over medium-high heat.
Add the ground turkey to the skillet along with garlic powder, smoked paprika, sea salt, and black pepper.
Sauté the turkey, breaking it into small crumbles, until it is fully browned and cooked through.
Remove the potato from the oven, slice it in half lengthwise, and scoop out the flesh into a mixing bowl, leaving a thin layer against the skin.
Mash the potato flesh with the nonfat Greek yogurt until smooth and creamy, then stir in the cooked ground turkey.
Spoon the mixture back into the potato skins and top each half with shredded sharp cheddar cheese.
Place the boats under the broiler for 2 to 3 minutes until the cheese is bubbly and golden brown.
Garnish with freshly sliced green onions and serve immediately.