01 -
Prepare the white rice following the package instructions in a medium saucepan.
02 -
In a large pot of salted boiling water, cook the bell peppers until tender, approximately 12 minutes. Drain thoroughly.
03 -
Preheat the oven to 350°F. In a large mixing bowl, combine the cooked rice, 3/4 of the marinara sauce, 1 1/2 cups shredded mozzarella, Parmesan cheese, mini pepperoni, garlic powder, chopped basil, and season with kosher salt and freshly ground black pepper.
04 -
Arrange the cooked peppers in an ovenproof skillet or baking dish. Fill each pepper with the rice mixture, then top with the remaining marinara sauce, shredded mozzarella cheese, and additional mini pepperoni.
05 -
Bake in the preheated oven until the filling is heated through and the cheese is bubbly, approximately 15 to 17 minutes.