In a large bowl, mix all the ingredients except noodles and 2/3 of the shredded mozzarella to make the sauce. Lightly spray a 9 x 13-inch pan with cooking spray. Pour a thin layer of sauce on the bottom of the baking dish. Add 1/2 of the noodles, 1/2 of the remaining sauce, and repeat, using up the noodles and sauce. Top with remaining mozzarella. Refrigerate overnight. Before baking, pour 1 1/2 cups cold water around the edges of the pan, but not in the center. Bake, lightly covered, at 350 degrees for 1 hour and 15 minutes, Then let stand for 15 minutes. Chopped spinach or sliced zucchini can be substituted for the chopped broccoli. A combination of vegetables can also be used for variety.