Preheat your oven to 425°F (220°C) and line a baking sheet with parchment paper.
Wash the russet potato and slice it into thin, uniform fries or wedges.
In a bowl, toss the potato slices with avocado oil, half of the sea salt, and half of the black pepper until evenly coated.
Spread the potatoes in a single layer on the baking sheet and roast for 25 to 30 minutes, flipping halfway through, until golden and crispy.
While the potatoes roast, heat a non-stick skillet over medium-high heat and add the ground turkey.
Cook the turkey, breaking it up with a spatula, until browned and cooked through.
Stir in the tomato sauce, chili powder, cumin, garlic powder, onion powder, and the remaining salt and pepper.
Reduce the heat to low and let the turkey chili simmer for 5 minutes to allow the flavors to meld.
Once the fries are done, remove them from the oven and pile them together in the center of the tray.
Spoon the turkey chili over the fries and sprinkle with the shredded sharp cheddar cheese.
Return the tray to the oven for 2 to 3 minutes, or until the cheese is completely melted.
Top the loaded fries with a dollop of Greek yogurt and a sprinkle of sliced green onions before serving.