Cut sausage into bite sized pieces. Dice the onion and green onions. Peel potatoes and slice into thin strips.
In a pot, melt the butter and saute the onions over medium heat for 3 minutes. Add the sausage and saute for an additional 5 minutes.
Add the potatoes and add enough water to cover the potatoes. Cook over medium heat for 35 minutes, stirring frequently. Season to taste.