Oil and flour a 9 x 13 cake pan

1 pkg. white cake mix
1 pkg. instant pistachio pudding mix
3/4 c. oil
3 eggs
1 c. 7-Up
1/2 c. chopped nuts

Mix altogether, bake at 325 degrees for 45 minutes. Turn cake out onto foil covered cardboard. Ice with the following:

2 envelopes whipped topping mix
1 1/2 c. cold milk

Beat whipped topping and milk until stiff and add 1 package pistachio pudding mix. Spread on top and side of cooled cake. Sprinkle with nuts.