Preheat your oven to 400°F (200°C) and line a large baking sheet with parchment paper.
In a large bowl, toss the sliced potatoes, bell peppers, and onions with olive oil, smoked paprika, garlic powder, oregano, salt, and pepper until evenly coated.
Spread the seasoned vegetables on the prepared baking sheet.
Place the sausages on top of the vegetables, ensuring they are evenly spaced.
Bake in the preheated oven for 30-40 minutes, flipping the sausages halfway through, until the sausages are browned and fully cooked (165°F/74°C internal temperature) and the vegetables are tender and golden.
Sprinkle with fresh parsley and serve warm.
