Great recipe. Super moist cake. I too used a 9x13 pan, but I used alll the cool whip mixture. I substituted a can of ginger ale instead of the 7 up, as that is what I had handy. Still came out great, and my guests agreed.
Very good and very moist! I have no decent round cake pans so I used 9x13 stoneware. I only used half of the Cool Whip for the frosting since there was less surface area to cover. (It made plenty!). The boyfriend loves it too and the green color of the cake is fun for spring! Thanks for posting! :)