Preheat your oven to 400°F and line a small baking sheet with parchment paper.
Scrub the Russet potato, pierce it several times with a fork, and bake for 45 to 50 minutes until the center is tender.
While the potato bakes, heat the olive oil in a medium skillet over medium-high heat.
Add the diced yellow onion and sauté for 3 to 4 minutes until translucent and fragrant.
Add the ground turkey, chili powder, cumin, sea salt, and black pepper, breaking the meat apart with a spatula until fully browned.
Stir in the minced garlic and cook for 1 additional minute before removing the skillet from the heat.
Slice the baked potato down the center, fluff the inside with a fork, and stuff it generously with the seasoned turkey mixture.
Sprinkle the shredded sharp cheddar cheese over the top and return to the oven for 2 to 3 minutes until the cheese is melted and bubbly.
Top with a dollop of nonfat Greek yogurt and a sprinkle of fresh chives before serving hot.