01 - Preheat the oven to 375°F.
02 - Slice the tops off the bell peppers and remove the seeds and membranes. Set the peppers aside.
03 - Heat olive oil in a large skillet over medium heat. Add onion and garlic, sautéing for 2–3 minutes until softened.
04 - Add ground turkey to the skillet. Cook, breaking it up with a spoon, until browned and cooked through, approximately 6–8 minutes.
05 - Stir in diced tomatoes, cooked rice, oregano, paprika, salt, and black pepper. Cook for 2–3 minutes to blend flavors. Remove from heat and mix in chopped parsley.
06 - Fill each bell pepper with the turkey-rice mixture. Stand the peppers upright in a baking dish.
07 - Sprinkle shredded cheese over the tops of the stuffed peppers if desired.
08 - Pour about 1/4 cup of water into the bottom of the baking dish. Cover loosely with aluminum foil.
09 - Bake for 30 minutes covered.
10 - Remove foil and bake for an additional 10 minutes until peppers are tender and cheese is melted and golden brown.
11 - Garnish with extra chopped parsley before serving.