01 -
Preheat oven to 375°F.
02 -
Slice the tops from the bell peppers, remove seeds, rinse, and drain thoroughly.
03 -
Heat olive oil in a large skillet over medium heat. Add onion and garlic, cooking until onion is translucent.
04 -
Add ground beef to the skillet and brown, breaking it apart as it cooks.
05 -
Stir in cooked rice, tomato sauce, diced tomatoes, Italian seasoning, salt, and black pepper. Simmer for 5 minutes.
06 -
Fill each prepared pepper with the beef and rice mixture until well-packed.
07 -
Stand stuffed peppers upright in a baking dish. Pour about 1/4 inch water into the base of the dish.
08 -
Cover baking dish with foil and bake for 35 minutes.
09 -
Remove foil, top each pepper with mozzarella and parmesan. Return to oven, baking uncovered for 10 to 15 minutes until cheese is melted and golden.
10 -
Let peppers cool for a few minutes, sprinkle with chopped parsley, and serve warm.