Preheat oven to 375 F°, arrange pepper halves in 3-quart baking dish and set aside.
Cook turkey, Riced Cauliflower, onion, garlic and salt in a large nonstick skillet over medium-high heat 10 minutes, stirring occasionally, until turkey is no longer pink and vegetables are tender.
Stir in 1 cup mozzarella, 1 cup sauce, Parmesan cheese and Italian seasoning.
Evenly fill peppers with turkey mixture. Top each pepper with remaining sauce.
Cover and bake 25 minutes or until hot.
Remove cover, sprinkle with remaining mozzarella and bake 5 minutes or until cheese is melted.