In a small bowl, whisk together the olive oil, oregano, salt, and pepper.
¼ cup olive oil, ½ tablespoon dried oregano, Salt and black pepper
On a large baking sheet, arrange the sausages, sliced peppers, and onions in a single layer. Drizzle the oil mixture over everything and toss the vegetables to coat evenly.
1 pound Italian sausages (around 5 pieces), 1 green bell pepper, 1 red bell pepper, 1 orange bell pepper, 1 large onion
Preheat your oven to 425°F (220°C). Bake for 25–30 minutes, stirring once halfway through, until the sausages are browned and cooked through and the vegetables are tender.
Serve hot on their own, in hoagie rolls, or over rice or pasta for a hearty meal!