Preheat your oven to 325°F (160°C) and lightly grease a small 4-inch springform pan or ramekin.
In a small bowl, combine the almond flour and melted coconut oil until it reaches a sandy consistency.
Press the almond mixture firmly into the bottom of the prepared pan to form an even crust.
In a separate mixing bowl, whisk together the Greek yogurt, egg whites, and vanilla protein powder until the batter is completely smooth.
Pour the yogurt mixture over the crust and smooth the top with a spatula.
Bake for 25 to 30 minutes, or until the edges are firm but the center still has a slight jiggle.
While the cheesecake bakes, place the mixed berries in a small saucepan over medium heat.
Simmer the berries for 8 to 10 minutes, stirring occasionally, until they break down and thicken into a jam-like consistency.
Remove the cheesecake from the oven and let it cool to room temperature, then refrigerate for at least 2 hours to set.
Top the chilled cheesecake with the warm or cooled berry compote before serving.