Preheat your oven to 400°F and line a large baking sheet with parchment paper.
In a skillet over medium heat, sauté the ground turkey in olive oil until it is thoroughly browned and cooked through.
While the turkey cooks, slice the jalapeños in half lengthwise and use a small spoon to carefully scrape out the seeds and white membranes.
In a medium mixing bowl, combine the cooked ground turkey, cream cheese, Greek yogurt, garlic powder, onion powder, sea salt, and black pepper until well incorporated.
Spoon the turkey and cheese mixture generously into each jalapeño half, pressing down slightly to secure the filling.
Arrange the stuffed peppers on the prepared baking sheet and sprinkle the shredded sharp cheddar cheese evenly over the top of each one.
Bake for 15 to 18 minutes until the jalapeños are tender and the cheese topping is bubbly and lightly golden.
Remove from the oven and garnish with freshly chopped chives before serving immediately.