Preheat your oven to 400°F (200°C).
Pierce the Russet potato several times with a fork and bake for 45-50 minutes until the center is tender.
While the potato bakes, brown the ground turkey in a non-stick skillet over medium heat until fully cooked.
Stir the tomato sauce, chili powder, ground cumin, sea salt, and black pepper into the turkey and simmer for 5 minutes.
Remove the potato from the oven, slice it in half lengthwise, and scoop out most of the flesh, leaving a 1/4-inch thick shell.
Lightly brush the potato skins with olive oil and return them to the oven for 5-7 minutes until they become crispy.
Fill the crispy skins with the prepared turkey chili and sprinkle the shredded sharp cheddar cheese over the top.
Bake for an additional 2-3 minutes until the cheese is melted and bubbly.
Garnish with a dollop of non-fat Greek yogurt and fresh green onions before serving.