While the crust bakes, whisk together the lime juice, sweetened condensed milk, and egg yolks until smooth and fully combined.
Evenly divide the filling among the baked crusts, filling each liner nearly to the top.
Bake for 12–15 minutes, or until the filling is just set.
Allow the mini pies to cool in the muffin pan for about 5 minutes before transferring them to a wire rack.
Let them cool completely, about 1 hour, then refrigerate until chilled.