Heat the oven to 375°F and coat a 9-by-13-inch baking dish with cooking spray.
Add the converted rice, sausage, frozen peppers and onions, drained tomatoes, broth, paprika, salt and black pepper to the dish.
Stir once, level the rice beneath the broth and seal the dish tightly with foil.
Bake for 40 minutes, then uncover and test several grains from the center.
Add 2 tablespoons hot broth, reseal and bake for 5 to 10 minutes if the rice is still firm.
Rest the covered casserole for 8 minutes, then fluff the rice around the sausage before serving.