Preheat oven to 350 degrees F.
In large frying pan over medium heat, melt butter and olive oil and fry Italian sausage until brown on all sides. Place sausage in a casserole dish and add the onions, bell peppers, potatoes, garlic, wine and salt and pepper, to taste. Bake for 45 minutes or until potatoes are tender when pierced with a fork.
Recipe courtesy of Carissa Seward