Preheat your oven to 325°F (165°C).
In a small bowl, mix the almond flour with a tiny splash of water to form a crumbly dough, then press it firmly into the bottom of a 4-inch springform pan or a large oven-safe ramekin.
In a separate mixing bowl, whisk together the Greek yogurt, softened Neufchatel cheese, vanilla whey protein, liquid egg whites, monk fruit sweetener, and vanilla extract until the batter is completely smooth and lump-free.
Pour the cheesecake batter over the almond flour base in the pan.
Bake for 25 to 30 minutes, or until the edges are set and the center has a slight jiggle.
While the cheesecake bakes, place the mixed berries in a small saucepan over medium heat, stirring occasionally until they break down into a thick, jammy sauce.
Remove the cheesecake from the oven and let it cool at room temperature for 30 minutes, then transfer to the refrigerator to chill for at least 2 hours.
Spread the berry compote over the chilled cheesecake before slicing and serving.