Preheat oven to 400°F. Grease a 7-inch (or 8 inch) pie pan.
In a large mixing bowl, use a hand mixer to combine the cream cheese, egg, and sweetener until smooth. Stir in the vanilla and salt. Gently fold in the raspberries with a rubber spatula. Pour the mixture into the prepared pan and set aside.
Make the biscuits: Place the egg whites in a medium-sized mixing bowl or the bowl of a stand mixer. Using a hand mixer or stand mixer, whip the egg whites until very fluffy and stiff.
In a separate medium-sized bowl, combine the almond flour and baking powder. Cut in the butter and add the salt, stirring gently to keep the butter pieces intact.
Gently fold the almond flour mixture into the egg whites. Use a large spoon or ice cream scooper to scoop out the dough and form it into a 2-inch-wide biscuit, making sure the butter stays
in separate clumps. Place the biscuit on top of the raspberry mixture in the pan. Repeat with remaining dough to make 4 biscuits.
Place the pan in the oven and cook for 18 - 23 minutes or until the biscuits are golden brown and cooked through.
While the cobbler cooks, make the frosting: Place the cream cheese in a small bowl and stir to break it up. Add the sweetener and stir. Add the almond milk and stir until well combined. If you prefer a thinner frosting, add more almond milk.
Remove the cobbler from the oven and allow to cool slightly, then drizzle with the frosting. Garnish with fresh raspberries.
Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat the cobbler in a preheated 350°F oven for 3 minutes, or until warmed through.