This one is lemon, you could use any flavor cake and jello and mix the icing with lime or orange juice too.
Oven 350 deg/9X13 pan sprayed
Mix 1 box powdered sugar
1/2 C lemon juice (always fresh squeezed if available). Set aside.
1 pkg yellow cake mix
1 pkg lemon jello
3/4 C water
3/4 C canola oil
Mix above cake ingreds together, beat for 4 mins. Pour into cake pan, bake for about 35 mins or until cake is done. Upon removing from oven while cake is hot, poke holes throughout the cake with the handle end of a wooden spoon. Pour prepared icing over top. Serve warm or cold with whipped cream topping or vanilla ice cream. The next day the it seems to be even better because the icing absorbs into the cake.