Preheat an oven to 350F.
Mix the dry cinnamon roll ingredients in a food processor or large bowl before adding the Greek yogurt, 2 tablespoons of butter, and orange zest. Pulse 4-5 times or mix until a dough begins to form. (You want some dry ingredients remaining to avoid over mixing.)
Transfer the dough to a piece of parchment paper sprayed with nonstick cooking spray and use your hands to form a ball of dough. (You can spray your hands with a tiny bit of cooking spray to prevent any sticking.)
Use a rolling pin to roll the dough into a large square, about 11"x11".
Melt the remaining 2 tablespoons of butter and mix in the remaining cinnamon. Spread it evenly across the dough before tightly rolling the dough. (Optional: reserve a small amount to brush on the outside of the rolled dough.)
Tuck the ends in and use a knife to slice the roll into 10 pieces.
Lay the pieces flat on the cut side and bake for 18-22 minutes or until they're cooked through in the center.