Mix together:

1 yellow cake mix
4 eggs
1/2 c. oil
1 can Mandarin oranges

Beat 2 to 3 minutes with mixer. Put in greased jelly roll pan (15 x 10 1/2) or 9 x 13. Bake larger pan 20 minutes. Bake 9 x 13 pan for 35 to 40 minutes at 350 degrees. In large bowl mix 1 small box instant vanilla pudding and 1 (15 1/2 ounce) can crushed pineapple until thick. Fold in 1/4 teaspoon lemon flavoring and 9 ounces Cool Whip. Frost cake with this.