3Preheat your oven to 375°F (190°C).
Cook the white rice according to the package instructions and set aside.
In a large skillet, heat the olive oil over medium heat.
Add the chopped onions and bell peppers to the skillet and sauté until they are tender, about 5 minutes.
Add the chicken breast to the skillet and cook until it is no longer pink, about 7-10 minutes.
Season the chicken and vegetables with salt and pepper to taste.
In a large mixing bowl, combine the cooked rice, chicken and vegetable mixture, chicken broth, and half of the grated Parmesan cheese.
Transfer the mixture to a greased casserole dish.
Sprinkle the bread crumbs and the remaining Parmesan cheese evenly over the top of the casserole.
Bake in the preheated oven for 20-25 minutes, or until the top is golden brown and the casserole is heated through.
Remove from the oven and let it cool for a few minutes before serving.