Combine all the ingredients in a large bowl and scoop the ingredients into a greased 9 by 13-inch pan. Do not cover and bake at 350 degrees for 30-40 minutes. Sprinkle the last cup of almonds on the top of the casserole the last 5 minutes of baking. Serves 6-8 people. The mayonnaise sounds weird but I must say this is truly one of my all time favorite casseroles.