Preheat your oven to 400°F (200°C).
Heat the olive oil in a skillet over medium-high heat and sauté the ground turkey until browned and fully cooked.
Using a mandoline or a sharp knife, slice the Yukon Gold potato into very thin, uniform rounds.
In a small mixing bowl, whisk together the Greek yogurt, chicken broth, nutritional yeast, garlic powder, onion powder, sea salt, and black pepper until the sauce is smooth.
Lightly grease a small oven-safe baking dish and layer half of the potato slices on the bottom.
Spread the cooked ground turkey over the first layer of potatoes, then top with the remaining potato slices.
Pour the yogurt sauce evenly over the potatoes, ensuring it seeps into the layers.
Cover the dish tightly with foil and bake for 25 minutes.
Remove the foil and bake for an additional 15 minutes, or until the potatoes are tender and the top is lightly golden and bubbly.
Garnish with freshly chopped chives and serve warm.