Preheat the oven to 375°F (190°C).
Prepare the pie dish: Grease a 9-inch pie dish or baking pan.
Roll out the cinnamon rolls: Open the can of cinnamon roll dough, set aside the included glaze, and flatten each roll slightly. Arrange the dough in the pie dish, overlapping slightly to form the crust.
Prepare the apple filling: Peel, core, and slice the apples into thin, even pieces. Toss the apple slices with sugar, cinnamon, nutmeg (if using), and lemon juice in a bowl until evenly coated.
Assemble the pie: Pour the apple filling into the cinnamon roll crust, spreading it out evenly.
Bake the pie: Place the pie in the preheated oven and bake for 35–40 minutes, or until the cinnamon roll crust is golden brown and the apples are tender and bubbly.
Finish the pie: Remove the pie from the oven and allow it to cool for 10–15 minutes. Drizzle the cinnamon roll glaze over the top. For an extra treat, sprinkle with powdered sugar or caramel sauce.
Serve: Slice and enjoy! Optionally, serve with a scoop of vanilla ice cream or a drizzle of caramel.