Toss frozen rice with herbs and spread
into bottom of a 3-quart baking dish. Top
with 1 cup of the Italian cheese blend.
Combine peppers, mushrooms,
tomatoes and sausage in a large bowl.
Whisk together vinegar, oil, salt and
pepper in a small bowl. Toss with pepper
mixture. Add to baking dish on top of rice.
Cover and refrigerate overnight.
The next evening, remove casserole from
refrigerator. Heat oven to 375°. Remove
plastic from casserole; sprinkle dish with
remaining Italian cheese blend and the
Parmesan. Bake at 375° for 30 minutes.
Reduce heat to 350°. Cover with foil and
bake 30 minutes more. Serve warm.