Make the cheesecake base: In a bowl, whisk Greek yogurt, softened cream cheese, vanilla extract, sweetener, and a pinch of salt until smooth.
Add the protein: Stir in the vanilla protein powder. If it gets too thick, splash in a little milk to loosen.
Stir in the oats: Add rolled oats and chia seeds (if using). Pour in the remaining milk and mix until everything looks creamy and well combined.
Add blueberries: Fold in blueberries.
If using frozen, no need to thaw—they’ll naturally “sauce” the oats overnight.
Adjust sweetness and zest: Taste and add more maple syrup or honey if you want. A touch of lemon zest lifts the cheesecake flavor.
Chill: Divide into jars, cover, and refrigerate at least 4 hours, ideally overnight.
Serve: Stir, then top with extra blueberries and a sprinkle of graham cracker crumbs for that cheesecake finish.