Does anyone have a real simple recipe for key lime mousse?

I just volunteered to bring a cake to work for St. Patty's and I've got a great idea, but don't have a recipe for key lime mousse. (I'm planning on using my Bake N' Fill pan - lemon cake w/a key lime mousse filling.)

Anyone, please, help!!!!!

(The things I get myself into )

there is a recipe for the key lime filling on the bag of key limes if i am not mistaken all the ingredients are is key lime juice (a lot) and sweetened condensed milk. You can make it into a mousse by folding in whipped cream or cool whip I think it's 1/2 cup key lime juice and one can scm (it will curdle or thicken because of the lime juice). mix that together til thickened then fold in your whipped cream I would say bout 2 c. should do. If you want the green color you can add a couple drops of green food coloring or maybe some of the zest of the limes.

sorry me again... here a link to a recipe i found on epicurious.com http://www.epicurious.com/recipes/recipe_views/views/230292