Preheat the oven to 350 degrees.
In a microwave safe bowl, combine the mozzarella and cream cheeses. Heat at 30 second intervals until the cheeses are melted and well combined into a dough.
Add the cheese dough to a mixing bowl with the almond flour, baking powder and confectioners sugar substitute. Knead with your hands until completely combined.
Blend the egg and vanilla into the dough until incorporated well.
Place the dough into the freezer to set for 30 minutes.
Form the chilled dough into 3 equal pieces. Leave one ball of dough plain, mix the other thoroughly with the smashed strawberries, and blend the last ball of dough well with the cocoa powder. This will give you a chocolate, strawberry and vanilla ball of dough each.
Separate each ball of dough into 12 smaller balls of dough.
Combine one chocolate, one vanilla and one strawberry ball of dough, and form it into a cookie shape.
Repeat the process above with the remaining dough to create 12 cookies.
Bake for 10-15 minutes, until cooked through.