Preheat your oven to 400°F (200°C) and line a large baking sheet with parchment paper for easy cleanup.
Slice the sausages into 1-inch thick rounds to help them cook evenly and develop a nice browning exterior.
Core and slice the apples into wedges, aiming for uniform thickness so they roast evenly with the sausages.
In a small bowl, mix the cinnamon and ginger, then sprinkle half of the spice mixture over the apple wedges and toss gently to coat evenly.
Arrange the sausage slices and apple wedges in an even layer on the prepared baking sheet, ensuring they have space around each piece for browning.
Drizzle everything generously with olive oil and season with salt and pepper to taste, then toss lightly on the sheet to distribute the oil and seasonings evenly.
Roast in the preheated oven for about 30-35 minutes, shaking the pan once halfway through, until the sausage is browned and cooked through, and the apples are tender and caramelized around the edges.
Remove from oven and let rest for a few minutes; the mixture should be bubbling and fragrant, with crispy edges on the sausage and soft, caramelized apples.
Serve hot directly from the sheet pan for a rustic presentation or transfer to a platter. Enjoy the mix of crispy, juicy, and tender textures with warm spices enhancing the flavors.
