Preheat oven to 325°F (160°C) and grease a 7-inch springform pan.
In a small bowl, combine almond flour and melted coconut oil, then press firmly into the bottom of the prepared pan.
In a large mixing bowl, beat the softened cream cheese until smooth and lump-free.
Add the Greek yogurt, protein powder, erythritol, vanilla extract, and salt; whisk until fully incorporated.
Incorporate the eggs one at a time on low speed, mixing only until just combined to prevent air bubbles.
Pour the cheesecake batter over the almond flour base and smooth the top with a spatula.
Bake for 45 to 50 minutes, or until the edges are firm but the center remains slightly jiggly.
Turn off the oven and leave the door slightly ajar for 30 minutes to allow the cake to cool gradually.
Remove from oven and refrigerate for at least 4 hours to allow the proteins to set before serving.