To form roses, arrange about 8 apple slices in a straight row, with each slice overlapping one another to create a 12-inch line. Starting with one end, gently roll apples. Transfer rolled apples into pie crust. Repeat rolling apples, until all pie crusts are filled. Heat oven to 180c. Transfer to oven and bake until the crust is golden and apples have cooked, about 30 minutes. If apples start to brown faster than pie crust, lightly place foil on top.