Preheat your oven to 400°F and line a baking sheet with parchment paper.
Scrub the Russet potato, pierce it several times with a fork, and bake for 45-50 minutes until the center is tender.
While the potato is baking, heat a non-stick skillet over medium-high heat and add the ground turkey, breaking it up until browned.
Stir in the black beans, tomato paste, water, chili powder, cumin, garlic powder, sea salt, and black pepper; simmer for 5 minutes until thickened.
Once the potato is cool enough to handle, slice it in half lengthwise and scoop out the flesh, leaving a 1/4-inch thick shell.
Brush the inside and outside of the potato skins with olive oil and place them cut-side down on the baking sheet to roast for 10 minutes until crispy.
Flip the skins over, fill each cavity generously with the turkey chili mixture, and sprinkle the sharp cheddar cheese over the top.
Return to the oven for 3-5 minutes until the cheese is bubbling and golden.
Serve each skin topped with a dollop of plain Greek yogurt and a sprinkle of fresh sliced green onion.