Kwick Kielbasa Hash

2 tablespoons butter
2 cups O'Brien frozen potatoes
1 medium onion, chopped
1/2 lb kielbasa, cut in 1/2 inch pieces
salt & fresh ground pepper
1/4 cup grated sharp cheddar cheese

In 10-inch skillet melt butter until sizzling add potatoes and onion.
Cook over medium-high heat, stirring occasionally, until potatoes are lightly browned (5 to 6 minutes).
Add sausage and continue cooking, stirring occasionally, until sausage is heated through (6 to 8 minutes).
Stir in cheese and serve.