Gather the ingredients together. Prep the mozzarella by shredding it if needed. Pre-heat oven to 400F.
On a parchment-lined baking tray, create small circles using the shredded mozzarella. Use about 1/4 cup of mozzarella per taco.
While the oven is heating up, place the raspberries, water, lemon juice, and erythritol in a pan over medium heat. Cook over medium heat and mush together using a fork. Once the raspberries are reduced slightly and thicken, remove them from the heat and let the mixture cool.
Bake the mozzarella for 6-8 minutes or until lightly browned on the edges. Let cool for 1-2 minutes until the cheese is pliable and can still be handled.
Drape the mozzarella tacos over wooden spoons or spatula handles (suspended with glasses) to create the shape.
In a bowl, use an electric mixer (or whisk) to whip the cream cheese, heavy cream, and erythritol together.
Assemble the tacos. Add cream cheese mixture and raspberry sauce to each mozzarella taco.