Scrub the potato and cut it into small 1/2-inch cubes.
Heat olive oil in a large non-stick skillet over medium-high heat.
Add the diced potatoes and onions to the skillet, cooking for 8-10 minutes until the potatoes are golden and crispy.
Push the potatoes to the side and add the ground turkey, breaking it up with a spatula.
Season the mixture with sea salt, black pepper, and garlic powder, cooking until the turkey is browned and cooked through.
Stir in the fresh spinach and cook for 1 minute until just wilted.
In a small bowl, whisk together the egg and Greek yogurt until smooth, then pour the mixture over the skillet ingredients.
Reduce heat to low, sprinkle the shredded cheddar cheese on top, and cover the skillet for 2 minutes until the cheese is melted and the egg is set.