Any leftover filling can be baked in a small bowl and tastes like a baked pudding. After oil coating, bake for 15-20 minutes using the same baking method.
Mix almond flour and oat flour in a bowl.
Add olive oil and erythritol to make a dough.
Press the dough thinly into the tart mold.
Poke holes in the base with a fork, bake at 180°C (356°F) for 10 minutes, then let it cool.
Mix Greek yogurt and erythritol to make the filling.
Spread the yogurt filling over the baked tart crust.
Decorate with unsweetened fruits (blueberries, strawberries, etc.) on top.
Chill in the refrigerator for at least 30 minutes before serving.