Ingredients

2 pounds red-skinned potatoes, unpeeled
Salt
20 ounces ground turkey
1/3 cup plain bread crumbs
1 large egg
1 1/2 tablespoons chopped fresh sage
1/4 cup plus 1 tablespoon extra-virgin olive oil
Four 1-ounce slices of cheddar cheese, quartered
1/4 cup white wine vinegar
3 tablespoons snipped chives (optional)
Dijon mustard
8 small dinner rolls or potato rolls, split

Directions

1. Cut the potatoes into 1/2-inch cubes, place in a large pot and cover with an inch of water. Salt the water and bring to a boil over high heat. Continue boiling until the potatoes are tender, about 10 minutes.
2. In a medium mixing bowl, combine the ground turkey with the bread crumbs, egg, sage and 1/2 teaspoon of salt.
3. Divide the mixture into eighths and form into 1/2-inch-thick patties.
4. Heat the 1 tablespoon of olive oil in a large grill pan over medium heat.
5. When the oil is rippling hot, add the patties and cook, flipping once, until cooked through, about 4 minutes per side. Place 2 small cheese squares on each burger.
6. When the potatoes are cooked, drain them and immediately toss with the remaining 1/4 cup of olive oil, the vinegar, 1/2 teaspoon of salt and the chives.
7. Serve each burger on a roll spread with mustard. Serve 2 burgers on each plate with the potato salad.

Serves 4.