Preheat your oven to 400°F (200°C).
Scrub the Russet potato thoroughly and prick the skin several times with a fork.
Rub the potato skin with olive oil and a small pinch of sea salt, then place directly on the oven rack.
Bake for 45-50 minutes, or until the skin is crispy and the center is tender when pierced with a knife.
While the potato bakes, brown the ground turkey in a non-stick skillet over medium heat until fully cooked.
Season the turkey with garlic powder, black pepper, and the remaining sea salt.
Add the baby spinach to the skillet and stir for 1-2 minutes until just wilted, then remove from heat.
Slice the baked potato lengthwise and fluff the interior with a fork.
Stuff the potato with the turkey and spinach mixture, then sprinkle the shredded cheddar cheese over the top.
Return the potato to the oven for 2-3 minutes until the cheese is melted and bubbly.
Finish by topping with a dollop of Greek yogurt and a sprinkle of fresh chopped chives.