Prepare cake in a 13 by 9-inch pan.
In a large mixing bowl, beat eggs, oil and water on medium speed and scrape sides of bowl often.
Pour batter in prepared sheet cake pan.
Once the cake has baked, allow it to cool completely.
Poke cooled cake for the gelatin to flow through.
In a medium sauce pan, bring 1 cup of water to a boil.
Remove from the heat and whisk in lime jello mix.
Add 1 cup of cold water, and stir to combine.
Poke holes all along the top of the cake. Pour jello into the holes.
Move to the refrigerator to chill overnight.
To frost, in a large mixing bowl, whisk together cool whip and white chocolate pudding mix.
Frost the cake, and sprinkle St. Patrick’s Day sprinkles over top.