Preheat your oven to 400°F and line a large baking sheet with parchment paper.
Slice the jalapeño peppers in half lengthwise and use a small spoon to carefully scrape out the seeds and membranes.
Heat the avocado oil in a skillet over medium-high heat, then add the ground turkey, garlic powder, onion powder, sea salt, and black pepper.
Cook the turkey until fully browned and cooked through, using a spatula to break it into very fine crumbles.
In a medium mixing bowl, stir together the cooked turkey crumbles, Greek yogurt, and nutritional yeast until the mixture is well combined and creamy.
Spoon the turkey filling generously into each jalapeño half and arrange them in a single layer on the prepared baking sheet.
Sprinkle the almond flour evenly over the top of each stuffed pepper to create a breading layer.
Bake for 15 to 18 minutes until the peppers are tender and the almond flour topping has turned a light golden brown.