Preheat your oven to 400°F (200°C). Scrub the potato thoroughly, prick it several times with a fork, and bake for 45-50 minutes until the center is tender.
While the potato bakes, heat 1 teaspoon of olive oil in a skillet over medium heat. Add the ground turkey and cook until browned, breaking it into small crumbles.
Stir the tomato paste, black beans, chili powder, garlic powder, sea salt, and black pepper into the turkey. Simmer for 5 minutes until the sauce has thickened and coated the turkey.
Once the potato is cool enough to handle, slice it in half lengthwise. Scoop out the flesh, leaving about a 1/4-inch thick shell of potato against the skin.
Brush the inside and outside of the potato skins with the remaining 0.5 teaspoon of olive oil. Place them cut-side down on a baking sheet and bake for 5-7 minutes until the edges are crispy.
Flip the skins over and fill each cavity generously with the turkey chili mixture. Sprinkle the shredded cheddar cheese evenly over the top.
Return the loaded skins to the oven for 2-3 minutes, or until the cheese is melted and bubbly.
Remove from the oven and top each skin with a dollop of Greek yogurt and a sprinkle of sliced green onions before serving.