Preheat oven to 400°F. Prepare a baking sheet and coat with nonstick spray. Set aside.
Chop red potatoes, onions and apple. Transfer to a medium bowl.
Add olive oil, rosemary, smoked paprika, oregano, Kosher salt and ground pepper. Toss vegetables and fruit until well coated.
Spread vegetables and fruit evenly on baking sheet. Push half of them to each side and lay sausage links in the middle.
Place into oven. Bake at 400°F for 30 minutes or until sausages cooked through and vegetables are tender.
Serve immediately.