Recipe Source: A Cooks Quest
Cream Puff Shells
Meanwhile, combine the mascarpone cheese and lime curd. The lime curd will turn a pale green color. This is why I added the food coloring. The final product will have a wonderful green color to it so your friends will have an idea what they are about to eat.
Stir some of the whipped cream into the mascarpone cheese mixture to lighten it up a bit. Then add the cheese to the bowl with the whipped cream and fold the two mixtures together. Be gently here, you want to maintain the integrity of the whipped cream.