Smoked Salmon Hash without horseradish

1/4 lb white potatoes or 1/4 lb red potatoes, unpeeled, cut into 1/2 inch dice 2 tablespoons unsalted butter 1/2 red onion , cut into 1/2 inch dice 1 green[...]

1 tablespoon vegetable oil 4 potatoes , peeled and diced 1 small bell pepper , diced 1 cup red onion , diced 1/2 teaspoon salt 1/2 teaspoon pepper 6 ounces[...]