1 ½ pounds small potatoes, such as red, blue or gold, cut into 1-inch chunks (about 6 c.)
1 tablespoon extra-virgin olive oil
1 teaspoon kosher salt
½ teaspoon freshly ground pepper
4 links fully-cooked chicken sausage, sliced (12-ounces)
2 golden delicious apples, peeled, cored and cut into 1 1/2 –inch chunks
2 tablespoons whole-grain mustard
2 tablespoons maple syrup
1 tablespoon cider vinegar or red wine vinegar