Prep your pan: Line a 12-cup muffin pan with paper liners.
Preheat the oven to 325°F (165°C). The lower temp helps prevent overbaking.
Make the crust: Add 12 Oreos to a food processor and pulse to fine crumbs. Pour in the melted butter and a pinch of salt, then pulse until the texture looks like wet sand.
Pack the base: Divide the crumb mixture evenly among the liners (about 1 heaping tablespoon each).
Press down with the back of a spoon or a small flat-bottomed glass to compact.
Quick bake: Bake crusts for 5–6 minutes. Set aside to cool slightly while you make the filling.
Beat the cream cheese: In a mixing bowl, beat the softened light cream cheese until smooth and no lumps remain, about 1 minute. Scrape the bowl.
Add yogurt, sweetener, and flavor: Mix in the Greek yogurt, sugar (or sweetener), vanilla, salt, and cornstarch.
Blend until creamy and uniform. Avoid overwhipping; you don’t want too much air.
Boost the protein: Add the protein powder and mix on low just until incorporated. If it looks a bit thick, that’s fine—Greek yogurt keeps it silky.
Add the eggs: Mix in the eggs one at a time on low speed until just combined.
Overmixing can lead to cracks.
Fold in Oreos: Gently fold in the chopped Oreos with a spatula. You want chunks, not dust.
Fill the cups: Spoon the batter evenly over the crusts, filling each liner nearly to the top. Tap the pan on the counter to pop any large air bubbles.
Bake: Bake at 325°F for 16–20 minutes.
They’re done when the edges are set and the centers still have a slight wobble.
Cool gradually: Turn off the oven, crack the door, and let the cheesecakes sit for 10 minutes. Move the pan to a rack and cool to room temp.
Chill to set: Cover and refrigerate at least 3 hours, preferably overnight. They firm up and develop that classic cheesecake texture.
Top and serve: Add a dollop of whipped topping and a sprinkle of crushed Oreos, if you like.
Peel the liner and enjoy.