Take one of the dough disks and divide into four, even pieces. Roll out each piece into a circle slightly larger than your mini pie dish (if you're using a shallow mini pie dish, the circle should be 1 to 2-inches larger than the dish; if you're using a deep mini pie dish, the circle should be 3 to 4-inches larger than the dish). These will be the base and sides of your crust. Gently nestle each circle into its own pie plate, using your hands to gently press the dough against the sides and base of the plate.