Preheat your oven to 325°F (160°C).
In a small bowl, mix the almond flour with 1 teaspoon of the maple syrup until a crumbly dough forms.
Press the almond flour mixture firmly into the bottom of a small oven-safe ramekin or mini springform pan.
In a separate bowl, whisk together the Greek yogurt, protein powder, egg, vanilla extract, and the remaining maple syrup until completely smooth.
Pour the yogurt mixture over the crust in the ramekin.
Bake for 25-30 minutes, or until the edges are set but the center still has a slight jiggle.
While the cheesecake bakes, place the mixed berries and lemon juice in a small saucepan over medium heat.
Simmer the berries for 5-8 minutes, mashing slightly, until the mixture thickens into a compote.
Remove the cheesecake from the oven and let it cool at room temperature, then refrigerate for at least 2 hours.
Top the chilled cheesecake with the warm or cold berry compote before serving.