Preheat oven to 300 degrees Farenheit.
Line or grease a baking sheet, or several if making a large number of servings. If lining the baking sheet, no need to grease.
In a small mixing bowl, wisk together the pumpkin pie spice, 2 tablespoons honey, and lemon juice.
Roll the halved peaches in the honey and spice mixture to coat thoroughly
Place the spiced peaches onto the baking sheet and bake for 35-45 minutes. The peaches will start to brown.
While the peaches are roasting, in a small mixing bowl blend together the remaining honey and the mascarpone cheese.
(You may add a touch of cinnamon if you desire)
Refrigerate the mascarpone mixture until the peaches are finished roasting.
Once the peaches are slightly browned, remove from the oven & let cool completely.
Once cool, top with the mascarpone, dividing evenly.