Preheat oven to 400°F.
Combine mincemeat and applesauce. For a smoother filling, mix in a blender.
Fill each tart shell ¾ full. If using pre-made tart shells, place on a parchment lined cookie sheet with edges.
Bake for 25-30 minutes.
Cool completely and store in an airtight container, separating layers with parchment paper.
These freeze well.
I like to serve these slightly warmed with a scoop of ice cream.