This no-bake raspberry mousse cake is a quick and easy dessert that is perfect for busy weeknights. The cake is made with a simple graham cracker crust, layered with a creamy raspberry mousse, and topped with fresh raspberries. The mousse is made with fresh raspberries, whipped cream, and gelatin, giving it a light and fluffy texture. The cake is then chilled until set, making it a refreshing and delicious dessert that can be made in just a few minutes.