Sausage and peppers on a sheet pan is the five-minute-prep Wednesday dinner that never fails. Low carb, colorful, and the oven does all the work.
Preheat your oven to 425°F (220°C) and set a rack in the center position.
Slice the bell peppers into 1/2-inch strips and the red onion into thin wedges; place them on a large sheet pan.
Toss the vegetables with olive oil, dried oregano, garlic powder, salt, and black pepper on the pan for even coating.
Nestle the Italian sausage links among the vegetables, ensuring each has contact with the pan for browning.
Roast for 25–30 minutes, flipping the sausages and stirring the vegetables once halfway through, until the sausages are browned and cooked through and the peppers are tender with caramelized edges.