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Easy Carrot Cake

1 pkg. yellow cake mix
4 eggs
1 1/4 cups mayonnaise or salad dressing
1/4 cup cold water
2 tsp. cinnamon
2 cups finely shredded carrots
1/2 cup chopped nuts

In a large bowl, blend well at medium speed the cake mix, eggs, mayonnaise, water, and cinnamon. Stir in carrots and nuts. Pour the batter into a greased and floured 13x9 pan. Bake at 350 for 35 to 40 minutes or until a toothpick inserted into the center comes out clean. Cool and spread with frosting.