Mousse Pie is an American dessert dish that constitutes mousse as the main filling component. The crispness of the outer pastry dough goes well with the smooth mousse placed inside it. Traditional mousse pie recipes would involve the pie crust to be baked and cooled beforehand, filled with freshly beaten mousse and then frozen or chilled prior to serving. One of the most popular mousse pie recipes is the Chocolate mousse pie, which is prepared using cream cheese, cocoa and sugar. Other variations of mousse pie fillings include fruits, vegetables like pumpkin etc. Essentially a children’s favourite, the mousse pie is also considered a favourite dessert amongst vegetarians.