Add strawberries and stevia to a small bowl. Stir and let sit for 10 minutes. Reserve 1/2 cup of mixture and set aside.
Add main mixture of strawberries, stevia, cream cheese, greek yogurt, Cool Whip, half and half and vanilla to a blender and process.
Place 1/4 cup of granola in the bottom of two small dessert bowls. Add the yogurt mixture over the top of the granola in each bowl. Sprinkle a few extra pieces of Granola over the yogurt. Add reserved strawberries and shaved chocolate.