Preheat your oven to 400°F. Scrub the potato, pierce it with a fork, and bake for 45-50 minutes until tender.
While the potato bakes, brown the ground turkey in a non-stick skillet over medium-high heat until fully cooked.
Stir in the black beans, tomato paste, chili powder, cumin, garlic powder, sea salt, and black pepper. Add a splash of water to create a thick chili consistency and simmer for 5 minutes.
Once the potato is cool enough to handle, cut it in half lengthwise and scoop out most of the flesh, leaving a 1/4-inch shell.
Place the potato skins on a baking sheet, spray lightly with oil if desired, and bake for another 5-10 minutes until the edges are crispy.
Fill the crispy skins with the turkey chili mixture and top evenly with shredded sharp cheddar cheese.
Return to the oven or broiler for 2-3 minutes until the cheese is bubbly and melted.
Garnish with a dollop of plain Greek yogurt and freshly chopped green onions before serving.