- Preheat oven to 400°F (200°C). Line a baking sheet with foil.
- Prepare peppers: Rub or brush peppers with olive oil. Place cut-side down on the baking sheet. Bake for 10 minutes to soften slightly.
- Make filling: In a bowl, mix chicken, yogurt, mozzarella, hot sauce, onion powder, garlic powder, cayenne, and 2 tablespoons scallions until well combined.
- Stuff peppers: Remove peppers from oven, flip them, and drain excess liquid. Fill each pepper with a heaping ⅓ cup of the chicken mixture.
- Bake again: Return to oven and bake for 15 minutes, or until peppers are tender and filling is heated through.
- Serve: Drizzle with dressing and top with remaining scallions.
Enjoy your flavorful, protein-packed stuffed peppers!