Preheat your oven to 350°F (175°C). Line a 12-cup muffin tin with paper liners.
Begin with the crust. In a bowl, combine almond flour, melted butter, erythritol, and vanilla extract. Mix until a crumbly dough forms.
Divide the mixture evenly among the muffin cups, pressing firmly to form a crust at the bottom of each liner.
Bake the crusts for 5 minutes, then remove from the oven and set aside to cool.
For the filling, in a large bowl, beat the softened cream cheese until smooth. Add powdered erythritol, eggs, vanilla extract, and sour cream, beating until well combined and creamy.
Divide the filling evenly over the crusts in the muffin cups.
Bake for 15 minutes, or until the filling is set but still slightly jiggly in the center.
Allow the mini cheesecakes to cool to room temperature, then refrigerate for at least 2 hours, or until fully chilled and set.
For the whipped cream topping, in a chilled bowl, beat the heavy whipping cream, powdered erythritol, and vanilla extract until stiff peaks form.
Once the mini cheesecakes are chilled, top each with a dollop of whipped cream and a spoonful of diced strawberries.