Preheat your oven to 400°F (200°C). Scrub the potato, pierce it several times 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.
Season the turkey with chili powder, ground cumin, garlic powder, salt, and pepper, then cook until fully browned and set aside.
Once the potato is cool enough to handle, slice it in half lengthwise and scoop out the flesh, leaving about a quarter-inch of potato on the skin.
Brush the inside and outside of the potato skins with olive oil and place them face down on a baking sheet.
Bake the skins for 5 minutes, then flip them over and bake for another 5 minutes until the edges are crispy and golden.
Fill the crispy skins with the seasoned ground turkey and sprinkle the shredded cheddar cheese over the top.
Return to the oven for 2-3 minutes until the cheese is melted and bubbly.
Garnish each potato skin with a dollop of Greek yogurt and a sprinkle of sliced green onions before serving.