01 - Line a standard muffin tin with paper liners or arrange silicone molds on a flat baking sheet.
02 - Pulse the biscuits in a food processor until finely ground. Pour in the melted butter and process until the crumbs are evenly moistened and cling together when pressed.
03 - Divide the crumb mixture evenly among the prepared liners, pressing down firmly with the back of a spoon or a small measuring cup to create a compact, even base. Transfer the tin to the refrigerator to chill while you prepare the filling.
04 - In a medium mixing bowl, beat the cream cheese and powdered sugar together using a hand mixer or stand mixer on medium speed until completely smooth and lump-free.
05 - In a separate chilled bowl, whip the cold heavy cream to stiff peaks using a hand mixer or whisk attachment.
06 - Gently fold the whipped cream into the cream cheese mixture in two additions, being careful not to deflate it. Add the orange zest, fresh orange juice, and vanilla extract, then fold until the filling is smooth, uniform, and well combined.
07 - Spoon or pipe the filling over the chilled crusts, dividing it evenly. Smooth the tops with an offset spatula or the back of a spoon.
08 - Refrigerate the cheesecakes for at least 3 hours, or until the filling is firm and set throughout.
09 - Before serving, top each cheesecake with orange segments, a sprinkle of orange zest, and fresh mint leaves as desired.