Preheat oven to 450 degrees
In 15 1/2 inch by 10 1/2 inch jelly-roll pan, combine sausages, potatoes, onion, peppers, olive oil, 1/2 teaspoon salt, 1/4 teaspoon pepper and whatever optional ingredients you desire. Toss to coat.
Roast sausage mixture 20 minutes or until potatoes are fork tender and sausages are lightly browned, stirring once half way through roasting.