Preheat your oven to 400°F (200°C).
Scrub the Russet potato thoroughly and pierce several times with a fork.
Microwave the potato for 5 to 7 minutes until tender, or bake in the oven for 45 minutes.
Once cooled slightly, slice the potato in half lengthwise and scoop out the flesh, leaving about a quarter-inch of potato attached to the skin.
Brush the inside and outside of the potato skins with olive oil and sprinkle with a pinch of sea salt.
Place the skins cut-side down on a baking sheet and roast for 10 minutes until the edges are golden and crisp.
While the skins bake, brown the ground turkey in a non-stick skillet over medium heat until fully cooked.
Stir in the black beans, tomato sauce, chili powder, cumin, garlic powder, and black pepper, simmering for 3 minutes.
Flip the potato skins over and fill each cavity generously with the turkey chili mixture.
Top with the shredded sharp cheddar cheese and return to the oven for 3 to 5 minutes until the cheese is melted and bubbly.
Serve immediately with a dollop of Greek yogurt and a sprinkle of sliced green onions.