Preheat your oven to 400°F (200°C).
Scrub the russet potato thoroughly, poke several holes with a fork, and rub the skin with olive oil and a pinch of sea salt.
Place the potato directly on the oven rack and bake for 45 to 60 minutes until the skin is crisp and the center is soft.
While the potato bakes, heat a non-stick skillet over medium-high heat and add the ground turkey.
Cook the turkey until browned and fully cooked through, breaking it into small crumbles as it sears.
Stir the garlic powder, sea salt, and black pepper into the turkey.
Add the baby spinach to the skillet and sauté for 1 minute until just wilted, then remove from heat.
Slice the hot baked potato down the center and fluff the inside with a fork.
Stuff the turkey and spinach mixture into the potato, then top with a dollop of Greek yogurt and sliced green onions.