Preheat oven to 350. Lightly spray 13x9x2 inch baking dish with cooking spray. In large bowl, combine all the ingredients except corn flakes. Stir until thoroughly combined. Pour into prepared dish and spread evenly. Sprinkle the corn flakes over top and bake one hour until potatoes are cooked though and bubbly. Slice into 8 servings. *If using durkee fried onions in place of the corn flakes, put 1/2 cup into the potatoes, and the last 15 minutes of baking time, remove casserole and sprinkle with the fried onions, and return to oven for 15 additional minutes.