Preheat oven to 350 degrees F. Spray a 2-quart casserole dish with cooking spray and set aside.
Stir together soup, milk, 1 cup French-fried onions, vegetables, chicken (or turkey), cooked noodles, and 1/2 cup cheese in a large mixing bowl. Transfer to prepared baking dish, and bake in preheated oven for 30 minutes or until hot.
Carefully stir casserole, and top with remaining cheese and French-fried onions. Bake 5 minutes longer or until onions are golden.