Peel and cube the potato, then boil in salted water until tender, about 15 minutes.
Preheat oven to 400°F and line a baking sheet with parchment paper.
In a medium bowl, combine ground turkey, garlic powder, onion powder, salt, and pepper.
Roll the mixture into 5-6 uniform meatballs and bake for 15-18 minutes until fully cooked.
Drain the potatoes and mash with Greek yogurt until the texture is smooth and fluffy.
In a small saucepan, whisk beef broth, arrowroot, and ghee over medium heat until the gravy thickens and becomes glossy.
Serve the meatballs over the mashed potatoes, drizzle with gravy, and garnish with chopped parsley.