Preheat your grill to 400 degrees or turn on your broiler in your oven if you chose not to use the grill.
Cut a slice down the hatch chile and use a spoon to remove the seeds. Grill or broil them until the skin starts to blister and char. Next, remove them from the grill. In a skillet, heat up the oil and add the diced onion. Once softened, add the ground turkey, hot sauce, spices, and chopped cilantro. Cook the meat until the turkey is cooked through. Using a spoon, stuff the meat mixture into the hatch chiles. Top with the cheese and broil for a few minutes until the cheese start to bubble and brown. Sprinkle them with fresh cilantro for garnish.