01 - Preheat the oven to 375°F. Lightly grease a baking dish large enough to fit the peppers upright.
02 - Bring a large pot of salted water to a boil. Blanch the bell peppers for 3-4 minutes until slightly softened. Drain and set aside, cut side up.
03 - In a large skillet, heat olive oil over medium heat. Add onion and cook for 3 minutes until translucent. Stir in garlic and sauté for 1 minute.
04 - Add ground turkey to the skillet. Cook, breaking up with a spoon, until browned and cooked through, about 6-8 minutes.
05 - Stir in diced tomatoes, cooked rice, oregano, basil, paprika, salt, and pepper. Simmer for 3-4 minutes to combine flavors. Remove from heat and mix in half of the shredded cheese.
06 - Spoon the turkey and rice mixture evenly into the prepared bell peppers. Place peppers upright in the baking dish.
07 - Top each stuffed pepper with the remaining cheese.
08 - Cover with aluminum foil and bake for 25 minutes. Uncover and bake for an additional 10 minutes, or until cheese is melted and golden.
09 - Garnish with fresh parsley if desired. Serve hot.