Preheat oven to 450 degrees
Trim and cut brussels sprouts into thirds.
Core and cut apples into 1-inch chunks.
Arrange Brussels sprouts and apples on a baking sheet.
Mix oil, cinnamon, and sugar together in a bowl. Drizzle the oil on top of the brussels sprouts. sprinkle with salt.
Cover the Brussels sprouts with foil.
Cook for 10 minutes.
Remove foil. Cook for another 10 minutes
Remove from the oven. Top with cranberries and pepitas while the brussels sprouts are still piping hot.