Italian Sausage and Peppers

olive oil

sweet or hot Italian sausages ((about 5 links))

butter

large yellow sweet onion, (sliced)

red bell peppers, (seeded and sliced)

green bell peppers, (seeded and sliced)

garlic (minced)

dried oregano

dried basil ((or 1 tablespoon fresh basil))

salt

chicken broth or white cooking wine

diced tomatoes, (drained)

(optional) red pepper ((see note))