Preheat the oven to 210°C.
Place the cream cheese in a bowl and beat until smooth.
Add erythritol and Greek yogurt, then mix well.
Add the eggs one at a time, mixing thoroughly after each addition.
Add cornstarch and lemon juice, and combine evenly.
Pour the batter into a pan lined with parchment paper.
Bake in the oven for 25–30 minutes.
Let it cool completely, then refrigerate for at least 4 hours.