01 -
Set oven to 400°F (200°C) to ensure an even roasting temperature.
02 -
In a large mixing bowl, add sliced baby potatoes, trimmed green beans, sliced onion, and sausage.
03 -
Drizzle olive oil over the ingredients and sprinkle with garlic powder, salt, Italian seasoning, and ground black pepper.
04 -
Thoroughly toss the mixture until all pieces are evenly coated with oil and seasonings.
05 -
Spread the seasoned mixture in a single layer on a parchment-lined rimmed baking sheet to promote proper roasting.
06 -
Roast in the preheated oven for 30–40 minutes, stirring halfway through to ensure even browning, until potatoes are tender and sausage is browned.
07 -
Scatter chopped fresh parsley over the finished dish and serve hot.